Cisco Security Advisory
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AV:N/AC:L/Au:N/C:N/I:N/A:C/E:F/RL:OF/RC:C
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A device running Cisco IOS® Software, Cisco IOS XE Software, or Cisco IOS XR Software is vulnerable to a remote denial of service (DoS) condition if it is configured for Multiprotocol Label Switching (MPLS) and has support for Label Distribution Protocol (LDP).
A crafted LDP UDP packet can cause an affected device running Cisco IOS Software or Cisco IOS XE Software to reload. On devices running affected versions of Cisco IOS XR Software, such packets can cause the device to restart the mpls_ldp process.
A system is vulnerable if configured with either LDP or Tag Distribution Protocol (TDP).
Cisco has released software updates that address this vulnerability.
Workarounds that mitigate this vulnerability are available.
This advisory is posted at https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20100324-ldp.
Note: The March 24, 2010, Cisco IOS Software Security Advisory bundled publication includes seven Security Advisories. All the advisories address vulnerabilities in Cisco IOS Software. Each advisory lists the releases that correct the vulnerability or vulnerabilities detailed in the advisory. The table at this URL lists releases that correct all Cisco IOS Software vulnerabilities that have been published on March 24, 2010, or earlier:
Individual publication links are in "Cisco Event Response: Semiannual Cisco IOS Software Security Advisory Bundled Publication" at this link:
http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar10.html
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Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software devices are vulnerable if they are configured to listen for either targeted LDP hello messages or link LDP hello messages.
All versions of Cisco IOS Software and Cisco IOS XE Software that support MPLS are affected. Cisco IOS XR Software is affected in releases prior to 3.5.2.
Vulnerable Products
Several features within Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software require the device to listen for either targeted LDP hello messages or link LDP hello messages. The most reliable way to determine if the device is configured to listen to LDP hello messages, is to log into the device and perform these actions:
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Confirm whether MPLS forwarding is enabled.
A device that has MPLS forwarding disabled, is not vulnerable.
Cisco IOS Software and Cisco IOS XE Software
MPLS forwarding is enabled by default in Cisco IOS Software and Cisco IOS XE Software via the CLI command mpls ip. A device that has MPLS forwarding disabled, will have the global configuration command no mpls ip in the configuration. For Cisco IOS Software, the output of show mpls interface will show whether the device has it disabled. This example shows a Cisco IOS Software device that has MPLS forwarding disabled:
For Cisco IOS XE Software, examine the output of show running-config and confirm the existence of the global command no mpls, to ensure that the device will not process LDP hello messages. This example shows a Cisco IOS XE Software device that has MPLS forwarding disabled:Router#show mpls interface IP MPLS forwarding is globally disabled on this router. Individual interface configuration is as follows: Interface IP Tunnel Operational Router#
Cisco IOS XR SoftwareRouter#show running-config | include mpls no mpls ip Router#
MPLS forwarding is disabled by default in Cisco IOS XR Software.
A device that has MPLS forwarding enabled, will have the global configuration command mpls ldp in the configuration. This example shows a Cisco IOS XR Software device that has MPLS forwarding enabled:
This example shows a Cisco IOS XR Software device with MPLS forwarding disabled:RP/0/0/CPU0:Router-XR#show running-config mpls mpls ldp ! RP/0/0/CPU0:Router-XR#
If MPLS is disabled the device is not vulnerable and there is no requirement to perform the next step.RP/0/0/CPU0:Router-XR#show running-config mpls % No such configuration item(s) RP/0/0/CPU0:Router-XR#
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Confirm whether the device is listening to LDP hello messages.
If a device is configured to listen to LDP hello messages, it is vulnerable.
Cisco IOS Software and Cisco IOS XE Software
To determine if a device is configured to listen for LDP hello messages, log into the device and issue either of the following command line interface (CLI) commands show ip socket, show udp or show control-plane host open-ports. If the output shows any IP addresses listening on port UDP 646, the device is vulnerable. This is an example of a device that is configured to listen for LDP hello messages (one example is shown from each of the above commands):
Router#show ip socket Proto Remote Port Local Port In Out Stat TTY OutputIF 17 --listen-- 192.168.0.1 67 0 0 1 0 17 --listen-- 192.168.0.1 68 0 0 1 0 17 --listen-- 192.168.0.1 711 0 0 1 0 17 --listen-- 192.168.0.1 646 0 0 1 0 17 --listen-- 192.168.0.1 3503 0 0 1 0 Router#
Router#show udp Proto Remote Port Local Port In Out Stat TTY OutputIF 17 --listen-- 192.168.0.1 123 0 0 1 0 17 --listen-- 192.168.0.1 711 0 0 1 0 17 --listen-- 192.168.0.1 646 0 0 1 0 17 --listen-- 192.168.0.1 3503 0 0 1 0 Router#
Cisco IOS XR SoftwareRouter#show control-plane host open-ports Active internet connections (servers and established) Prot Local Address Foreign Address Service State tcp *:23 *:0 Telnet LISTEN udp *:123 *:0 NTP LISTEN udp *:646 *:0 LDP Hello LISTEN udp *:711 *:0 TDP Hello LISTEN Router#
To determine if a device is configured to listen for LDP hello messages, log in to the device and issue the show udp brief CLI command. If the output shows any IP address listening on port UDP 646, the device is vulnerable. This is an example of a device that is configured to listen for LDP hello messages:
If the device is not listening on UDP port 646, it is not vulnerable. Devices that are configured to only use Resource Reservation Protocol (RSVP) or Border Gateway Protocol (BGP) to distribute labels or MPLS Static Labels are not vulnerable.RP/0/0/CPU0:Router-XR#show udp brief PCB Recv-Q Send-Q Local Address Foreign Address 0x482609e8 0 0 :::514 :::0 0x482605f0 0 0 0.0.0.0:514 0.0.0.0:0 0x48260720 0 0 0.0.0.0:646 0.0.0.0:0 RP/0/0/CPU0:Router-XR#
To determine the Cisco IOS Software release that is running on a Cisco product, administrators can log in to the device and issue the show version command to display the system banner. The system banner confirms that the device is running Cisco IOS Software by displaying text similar to "Cisco Internetwork Operating System Software" or "Cisco IOS Software." The image name displays in parentheses, followed by "Version" and the Cisco IOS Software release name. Other Cisco devices do not have the show version command or may provide different output.
This example identifies a Cisco product that is running Cisco IOS Software Release 12.3(26) with an installed image name of C2500-IS-L:
Router#show version Cisco Internetwork Operating System Software IOS (tm) 2500 Software (C2500-IS-L), Version 12.3(26), RELEASE SOFTWARE (fc2) Technical Support: http://www.cisco.com/techsupport Copyright ) 1986-2008 by cisco Systems, Inc. Compiled Mon 17-Mar-08 14:39 by dchih <output truncated>
This example shows a product that is running Cisco IOS Software release 12.4(20)T with an image name of C1841-ADVENTERPRISEK9-M:
Router#show version Cisco IOS Software, 1841 Software (C1841-ADVENTERPRISEK9-M), Version 12.4(20)T, RELEASE SOFTWARE (fc3) Technical Support: http://www.cisco.com/techsupport Copyright ) 1986-2008 by Cisco Systems, Inc. Compiled Thu 10-Jul-08 20:25 by prod_rel_team <output truncated>
Additional information about Cisco IOS Software release naming conventions is available in "White Paper: Cisco IOS Reference Guide" at this link: http://www.cisco.com/web/about/security/intelligence/ios-ref.html.
Products Confirmed Not Vulnerable
- Cisco NX-OS Software is not affected.
- Cisco IOS XR Software Releases 3.5.2 and later are not affected.
No other Cisco products are currently known to be affected by this vulnerability.
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Confirm whether MPLS forwarding is enabled.
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MPLS LDP enables peer label switch routers (LSRs) in an MPLS network to exchange label binding information for supporting hop-by-hop forwarding in an MPLS network.
A vulnerability exists in Cisco IOS Software, Cisco IOS XE Software, and Cisco IOS XR Software when processing a specially crafted LDP packet. For the device to be vulnerable, it has to be configured to process LDP hello messages, as explained within the Affected Products section of this advisory.
The crafted LDP packet, can be received as either a unicast or multicast UDP packet on port UDP 646 on any listening IP address of the device. Transit traffic will not trigger this vulnerability.
Note: Devices configured with TDP will also process the crafted LDP packet and are vulnerable.
For further information regarding MPLS and LDP please consult the "Multiprotocol Label Switching (MPLS) Introduction" home page available at this link:
http://www.cisco.com/en/US/products/ps6557/products_ios_technology_home.html
This vulnerability is documented in the Cisco Bug ID CSCsz45567 ( registered customers only) for Cisco IOS Software and Cisco IOS XE Software, and CSCsj25893 ( registered customers only) for Cisco IOS XR Software. This vulnerability has been assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2010-0576.
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Users are advised to apply mitigation techniques to help limit exposure to the vulnerability. Mitigation consists of allowing only legitimate devices to connect to the device. To increase effectiveness, the mitigation must be coupled with anti-spoofing measures on the network edge. This action is required because LDP will use UDP as the hello transport protocol.
If LDP is not required on the device, then MPLS forwarding can be disabled with the global configuration command no mpls ip.
Note: LDP password or MD5 protection, does not protect against this vulnerability.
Transit traffic will not exploit this vulnerability. Only packets destined to the device may be used to exploit this vulnerability.
Additional mitigations that can be deployed on Cisco devices within the network are available in the companion document "Cisco Applied Mitigation Bulletin: Identifying and Mitigating Exploitation of the Cisco IOS Software Multiprotocol Label Switching Packet Vulnerability," which is available at this location: https://sec.cloudapps.cisco.com/security/center/content/CiscoAppliedMitigationBulletin/cisco-amb-20100324-ldp.
Infrastructure Access Control Lists
Warning: Because the feature in this vulnerability utilizes UDP as a
transport, it is possible to spoof the sender's IP address, which may defeat
access control lists (ACLs) that permit communication to these ports from
trusted IP addresses. Unicast Reverse Path Forwarding (Unicast RPF) should also
be considered, to offer a comprehensive solution.Although it is often difficult to block traffic that transits a network, it is possible to identify traffic that should never be allowed to target infrastructure devices and block that traffic at the border of the network. Infrastructure ACLs (iACLs) are a network security best practice and should be considered as a long-term addition to good network security as well as a workaround for this specific vulnerability. This iACL example should be included as part of the deployed infrastructure access list, which will help protect all devices with IP addresses in the infrastructure IP address range:
!--- !--- Feature: Label Distribution Protocol (LDP) !--- access-list 150 permit udp TRUSTED_SOURCE_ADDRESSES WILDCARD INFRASTRUCTURE_ADDRESSES WILDCARD eq 646 access-list 150 permit udp TRUSTED_SOURCE_ADDRESSES WILDCARD host 224.0.0.2 eq 646 !--- !--- Deny LDP traffic from all other sources destined !--- to infrastructure addresses, including multicast !--- and broadcast addresses. !--- access-list 150 deny udp any 224.0.0.0 0.0.0.255 eq 646 access-list 150 deny udp any host 255.255.255.255 eq 646 access-list 150 deny udp any INFRASTRUCTURE_ADDRESSES WILDCARD eq 646 !--- !--- Permit/deny all other Layer 3 and Layer 4 traffic in !--- accordance with existing security policies and !--- configurations. Permit all other traffic to transit the !--- device. !--- access-list 150 permit ip any any !--- !--- Apply access-list to all interfaces (only one example !--- shown) !--- interface fastEthernet 2/0 ip access-group 150 in
The white paper entitled "Protecting Your Core: Infrastructure Protection Access Control Lists" presents guidelines and recommended deployment techniques for infrastructure protection access lists and is available at this link: http://www.cisco.com/en/US/tech/tk648/tk361/technologies_white_paper09186a00801a1a55.shtml
Control Plane Policing
Warning: Because the feature in this vulnerability utilizes UDP as a
transport, it is possible to spoof the sender's IP address, which may defeat
ACLs that permit communication to these ports from trusted IP addresses.
Unicast RPF should also be considered, to offer a comprehensive
solution.Control Plane Policing (CoPP) can be used to block untrusted UDP traffic to the device. Cisco IOS Software Releases 12.0S, 12.2SX, 12.2S, 12.3T, 12.4, and 12.4T support the CoPP feature. CoPP can be configured on a device to help protect the management and control planes and minimize the risk and effectiveness of direct infrastructure attacks by explicitly permitting only authorized traffic that is sent to infrastructure devices in accordance with existing security policies and configurations. The CoPP example below should be included as part of the deployed CoPP policy, which will help protect all devices with IP addresses in the infrastructure IP address range.
!--- !--- Feature: Label Distribution Protocol (LDP) !--- access-list 150 deny udp TRUSTED_SOURCE_ADDRESSES WILDCARD any eq 646 !--- !--- Deny LDP traffic from all other sources destined !--- to the device control plane. !--- access-list 150 permit udp any any eq 646 !--- !--- Permit (Police or Drop)/Deny (Allow) all other Layer3 and !--- Layer4 traffic in accordance with existing security policies !--- and configurations for traffic that is authorized to be sent !--- to infrastructure devices !--- Create a Class-Map for traffic to be policed by !--- the CoPP feature !--- class-map match-all drop-ldp-class match access-group 150 !--- !--- Create a Policy-Map that will be applied to the !--- Control-Plane of the device. !--- policy-map control-plane-policy class drop-ldp-class drop !--- !--- Apply the Policy-Map to the !--- Control-Plane of the device !--- control-plane service-policy input control-plane-policy
In the above CoPP example, the access control entries (ACEs) that match the potential exploit packets with the "permit" action result in these packets being discarded by the policy-map "drop" function, while packets that match the "deny" action (not shown) are not affected by the policy-map drop function. Please note that the policy-map syntax is different in the 12.2S and 12.0S Cisco IOS Software trains:
policy-map control-plane-policy class drop-udp-class police 32000 1500 1500 conform-action drop exceed-action drop
Additional information on the configuration and use of the CoPP feature can be found in the documents, "Control Plane Policing Implementation Best Practices" and "Cisco IOS Software Releases 12.2 S - Control Plane Policing" at these links: http://www.cisco.com/web/about/security/intelligence/coppwp_gs.html and http://www.cisco.com/en/US/docs/ios/12_3t/12_3t4/feature/guide/gtrtlimt.html
Receive ACLs (rACL)
Warning: Because the feature in this vulnerability utilizes UDP as a
transport, it is possible to spoof the sender's IP address, which may defeat
ACLs that permit communication to these ports from trusted IP addresses.
Unicast RPF should also be considered, to offer a comprehensive
solution.For distributed platforms, Receive ACLs may be an option starting in Cisco IOS Software Versions 12.0(21)S2 for the 12000 (GSR), 12.0(24)S for the 7500, and 12.0(31)S for the 10720. The Receive ACL protects the device from harmful traffic before the traffic can impact the route processor. Receive ACLs are designed to only protect the device on which it is configured. On the 12000, 7500, and 10720, transit traffic is never affected by a receive ACL. Because of this, the destination IP address "any" used in the example ACL entries below only refer to the router's own physical or virtual IP addresses. Receive ACLs are considered a network security best practice, and should be considered as a long-term addition to good network security, as well as a workaround for this specific vulnerability. The white paper entitled "GSR: Receive Access Control Lists" will help you identify and allow legitimate traffic to your device and deny all unwanted packets. This white paper is available at the following link http://www.cisco.com/en/US/tech/tk648/tk361/technologies_white_paper09186a00801a0a5e.shtml
This is the receive path ACL written to permit this type of traffic from trusted hosts:
!--- !--- Feature: Label Distribution Protocol (LDP) !--- !--- !--- Permit LDP traffic from all trusted sources allowed !--- to infrastructure addresses. !--- access-list 150 permit udp TRUSTED_SOURCE_ADDRESSES WILDCARD any eq 646 !--- !--- Deny LDP traffic from all other sources destined !--- to infrastructure addresses. !--- access-list 150 deny udp any any eq 646 !--- !--- Permit all other traffic to the RP. !--- according to security policy and configurations. !--- access-list 150 permit ip any any !--- !--- Apply this access list to the 'receive' path. !--- ip receive access-list 150
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When considering software upgrades, also consult http://www.cisco.com/go/psirt and any subsequent advisories to determine exposure and a complete upgrade solution.
In all cases, customers should exercise caution to be certain the devices to be upgraded contain sufficient memory and that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, contact the Cisco Technical Assistance Center (TAC) or your contracted maintenance provider for assistance.
Each row of the Cisco IOS software table (below) names a Cisco IOS release train. If a given release train is vulnerable, then the earliest possible releases that contain the fix (along with the anticipated date of availability for each, if applicable) are listed in the "First Fixed Release" column of the table. The "First Fixed Release for all Advisories in 24 March 2010 Bundle Publication" column indicates the earliest possible releases which have fixes for all the published vulnerabilities in this Cisco IOS Security Advisory bundled publication. Cisco recommends upgrading to the latest available release where possible.
Major Release
Availability of Repaired Releases
Affected 12.0-Based Releases
First Fixed Release for this Advisory
First Fixed Release for all Advisories in 24 March 2010 Bundle Publication
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
12.0(32)S15; Available on 25-MAR-10
12.0(33)S6
12.0(32)S15; Available on 25-MAR-10
12.0(33)S6
Not Vulnerable
Not Vulnerable
Vulnerable; first fixed in 12.0S
Releases up to and including 12.0(14)SL1 are not vulnerable.
Releases up to and including 12.0(14)SL1 are not vulnerable; First fixed in 12.0S
Not Vulnerable
Not Vulnerable
Releases up to and including 12.0(9)ST are not vulnerable.
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory.
Vulnerable; first fixed in 12.0S
Vulnerable; first fixed in 12.0S
12.0(32)SY11
12.0(32)SY9b
12.0(32)SY11
12.0(32)SY9b
Vulnerable; first fixed in 12.0S
Vulnerable; first fixed in 12.0S
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Affected 12.1-Based Releases
First Fixed Release for this Advisory
First Fixed Release for all Advisories in 24 March 2010 Bundle Publication
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Vulnerable; first fixed in 12.2SE
Releases up to and including 12.1(11)AX are not vulnerable.
Releases up to and including 12.1(11)AX are not vulnerable; first fixed in 12.2SE
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Vulnerable; first fixed in 12.2SXF
Releases up to 12.1(8a)E are not vulnerable.
Releases up to and including 12.1(7a)E1a are not vulnerable; migrate to any release in 12.2SXF
12.1(22)EA14; Available on 27-JUL-10
Releases up to and including 12.1(6)EA2c are not vulnerable. Releases 12.1(8)EA1c and later are not vulnerable.
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; first fixed in 12.2SCB
Releases up to and including 12.1(7)EC are not vulnerable.
Releases up to and including 12.1(7)EC are not vulnerable; migrate to 12.2SCB
Releases up to and including 12.1(19)EO6 are not vulnerable.
Releases up to and including 12.1(19)EO6 are not vulnerable.
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Vulnerable; migrate to any release in 12.2
Releases up to and including 12.1(6)EX are not vulnerable.
Vulnerable; migrate to any release in 12.2
Releases up to and including 12.1(7a)EY3 are not vulnerable.
Releases up to and including 12.1(7a)EY3 are not vulnerable.
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Vulnerable; migrate to any release in 12.2
Note: Releases prior to 12.1(5)XV1 are vulnerable, release 12.1(5)XV1 and later are not vulnerable;
Releases prior to 12.1(5)XV1 are vulnerable, release 12.1(5)XV1 and later are not vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Vulnerable; migrate to any release in 12.2
Vulnerable; migrate to any release in 12.2
Not Vulnerable
Not Vulnerable
Vulnerable; migrate to any release in 12.2
Vulnerable; migrate to any release in 12.2
Releases prior to 12.1(5)YE1 are vulnerable, release 12.1(5)YE1 and later are not vulnerable;
Releases prior to 12.1(5)YE6 are vulnerable, release 12.1(5)YE6 and later are not vulnerable.
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Not Vulnerable
Affected 12.2-Based Releases
First Fixed Release for this Advisory
First Fixed Release for all Advisories in 24 March 2010 Bundle Publication
Not Vulnerable
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Releases prior to 12.2(8)BY are vulnerable, release 12.2(8)BY and later are not vulnerable; first fixed in 12.4
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 12.2SRE
Not Vulnerable
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Releases up to and including 12.2(37)EX are not vulnerable.
Releases 12.2(44)EX and later are not vulnerable; first fixed in 12.2SE
Releases up to and including 12.2(37)EX are not vulnerable.
Releases 12.2(44)EX and later are not vulnerable; first fixed in 12.2SE
Releases prior to 12.2(37)EY are vulnerable, release 12.2(37)EY and later are not vulnerable; first fixed in 12.2SE
Releases prior to 12.2(37)EY are vulnerable, release 12.2(37)EY and later are not vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Vulnerable; first fixed in 12.2SRC
Vulnerable; first fixed in 12.2SRC
Vulnerable; first fixed in 12.2SRC
Vulnerable; first fixed in 12.2SRC
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; 12.2(33)IRE, available on 15-April-10
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Releases up to and including 12.2(4)JA1 are not vulnerable.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; first fixed in 12.4
Not Vulnerable
Not Vulnerable
Releases prior to 12.2(30)S are vulnerable, release 12.2(30)S and later are not vulnerable; first fixed in 12.2SB
Releases prior to 12.2(30)S are vulnerable, release 12.2(30)S and later are not vulnerable;
12.2(31)SB18; Available on 24-MAR-10
12.2(33)SB8
12.2(33)SB8
12.2(31)SB18; Available on 24-MAR-10
Vulnerable; first fixed in 12.2SB
Vulnerable; migrate to any release in 12.2SRE
Vulnerable; first fixed in 12.2SCB
Vulnerable; first fixed in 12.2SCB
12.2(33)SCB6
12.2(33)SCB6
12.2(33)SCC1
12.2(33)SCC1
Not Vulnerable
Not Vulnerable
12.2(50)SE4; Available on 25-MAR-10
12.2(50)SE4; Available on 25-MAR-10
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Vulnerable; first fixed in 12.2SE
Vulnerable; first fixed in 12.2SE
Vulnerable; first fixed in 12.2SE
Vulnerable; first fixed in 12.2SE
Not Vulnerable
Not Vulnerable
Releases prior to 12.2(25)SEG4 are vulnerable, release 12.2(25)SEG4 and later are not vulnerable; first fixed in 12.2SE
Releases prior to 12.2(25)SEG4 are vulnerable, release 12.2(25)SEG4 and later are not vulnerable; first fixed in 12.2SE
Releases up to and including 12.2(31)SG1 are not vulnerable;
Release 12.2(40)SG and later are not vulnerable;
Releases up to 12.2(31)SG1 are not vulnerable; releases 12.2(40)SG and later are not vulnerable.
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Not Vulnerable
Vulnerable; first fixed in 12.2SRD
Vulnerable; first fixed in 12.2SRD
Vulnerable; first fixed in 12.2SRD
Vulnerable; first fixed in 12.2SRD
12.2(33)SRC5
12.2(33)SRC5
12.2(33)SRD3
12.2(33)SRD3
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
p>Releases up to and including 12.2(18)SV2 are not vulnerable. Releases up to and including 12.2(18)SV2 are not vulnerable.
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Releases prior to 12.2(25)SW12 are vulnerable, release 12.2(25)SW12 and later are not vulnerable; migrate to any release in 12.4SW
Releases up to and including 12.2(25)SW3 are not vulnerable.
Releases 12.2(25)SW12 and later are not vulnerable; first fixed in 15.0M
Vulnerable; first fixed in 12.2SXF
Vulnerable; first fixed in 12.2SXF
Vulnerable; first fixed in 12.2SXF
Vulnerable; first fixed in 12.2SXF
Vulnerable; first fixed in 12.2SXF
Vulnerable; first fixed in 12.2SXF
Vulnerable; first fixed in 12.2SXF
Vulnerable; first fixed in 12.2SXF
Vulnerable; first fixed in 12.2SXF
Vulnerable; first fixed in 12.2SXF
12.2(18)SXF17a
12.2(18)SXF17a
12.2(33)SXH6
12.2(33)SXH6
12.2(33)SXI2
12.2(33)SXI2a
12.2(33)SXI2a
12.2(33)SXI3
Vulnerable; first fixed in 12.2SB
Vulnerable; migrate to any release in 12.2SRE
Vulnerable; first fixed in 12.2SB
Vulnerable; migrate to any release in 12.2SRE
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Releases up to and including 12.2(8)TPC10a are not vulnerable.
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Releases up to and including 12.2(1)XA are not vulnerable.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Releases prior to 12.2(33)XN1 are vulnerable, release 12.2(33)XN1 and later are not vulnerable; first fixed in 12.2SRC
Releases prior to 12.2(33)XN1 are vulnerable, release 12.2(33)XN1 and later are not vulnerable; first fixed in 12.2SRC
Please see Cisco IOS-XE Software Availability
Please see Cisco IOS-XE Software Availability
Please see Cisco IOS-XE Software Availability
Please see Cisco IOS-XE Software Availability
Please see Cisco IOS-XE Software Availability
Please see Cisco IOS-XE Software Availability
Please see Cisco IOS-XE Software Availability
Please see Cisco IOS-XE Software Availability
Please see Cisco IOS-XE Software Availability
Please see Cisco IOS-XE Software Availability
Please see Cisco IOS-XE Software Availability
Please see Cisco IOS-XE Software Availability
Not Vulnerable
Not Vulnerable
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Not Vulnerable
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Releases prior to 12.2(8)YJ1 are vulnerable, release 12.2(8)YJ1 and later are not vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Not Vulnerable
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Releases prior to 12.2(8)YN1 are vulnerable, release 12.2(8)YN1 and later are not vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Releases up to and including 12.2(8)YP are not vulnerable.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; first fixed in 12.2SXF
Vulnerable; first fixed in 12.2SXF
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; first fixed in 12.2SXH
Vulnerable; first fixed in 12.2SXH
Vulnerable; first fixed in 12.2SB
Vulnerable; migrate to any release in 12.2SRE
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Affected 12.3-Based Releases
First Fixed Release for this Advisory
First Fixed Release for all Advisories in 24 March 2010 Bundle Publication
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; first fixed in 12.2SCB
Vulnerable; first fixed in 12.2SCB
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Not Vulnerable
Not Vulnerable
Releases prior to 12.3(11)JA5 are vulnerable, release 12.3(11)JA5 and later are not vulnerable
Not Vulnerable
Releases prior to 12.3(8)JEA4 are vulnerable, release 12.3(8)JEA4 and later are not vulnerable
Not Vulnerable
Releases prior to 12.3(8)JEB2 are vulnerable, release 12.3(8)JEB2 and later are not vulnerable
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Releases up to and including 12.3(2)JK3 are not vulnerable.
Releases 12.3(8)JK1 and later are not vulnerable; first fixed in 12.4
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Releases up to and including 12.3(4)TPC11a are not vulnerable.
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Not Vulnerable
Releases up to and including 12.3(2)XA3 are not vulnerable.
Releases 12.3(2)XA7 and later are not vulnerable; first fixed in 12.4
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release. Releases up to and including 12.3(2)XC4 are not vulnerable.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release. Releases up to and including 12.3(2)XE4 are not vulnerable.
Vulnerable; first fixed in 12.4
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Releases prior to 12.3(7)XI11 are vulnerable, release 12.3(7)XI11 and later are not vulnerable; first fixed in 12.2SB
Releases prior to 12.3(7)XI11 are vulnerable, release 12.3(7)XI11 and later are not vulnerable
Releases prior to 12.3(7)XJ2 are vulnerable, release 12.3(7)XJ2 and later are not vulnerable; migrate to any release in 12.4XN
Vulnerable; first fixed in 12.4XR
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release. Releases up to and including 12.3(7)XR6 are not vulnerable.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 12.4XN
Vulnerable; first fixed in 12.4XR
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release. Releases up to and including 12.3(8)XX1 are not vulnerable.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Releases prior to 12.3(11)YF1 are vulnerable, release 12.3(11)YF1 and later are not vulnerable;
Vulnerable; first fixed in 12.4XR
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release. Releases up to and including 12.3(8)YG5 are not vulnerable.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release. Releases prior to 12.3(11)YK1 are vulnerable, release 12.3(11)YK1 and later are not vulnerable;
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release. Releases up to and including 12.3(11)YS1 are not vulnerable.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 12.4XB
Releases up to and including 12.3(14)YU are not vulnerable.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Releases prior to 12.3(14)YX10 are vulnerable, release 12.3(14)YX10 and later are not vulnerable; migrate to any release in 12.4XN
Vulnerable; first fixed in 12.4XR
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Affected 12.4-Based Releases
First Fixed Release for this Advisory
First Fixed Release for all Advisories in 24 March 2010 Bundle Publication
12.4(25c)
12.4(25c)
15.0(1)M1
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
12.4(10b)JDD1
Not Vulnerable
Not Vulnerable
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Releases prior to 12.4(3g)JMA2 are vulnerable, release 12.4(3g)JMA2 and later are not vulnerable
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; first fixed in 12.4JA
Not Vulnerable
12.4(24)MD
Not Vulnerable
12.4(22)MDA2
12.4(20)MR2
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4(15)T10, 12.4(20)T4, 12.4(22)T3, 12.4(24)T2
12.4(15)T12
12.4(20)T5
12.4(24)T3; Available on 26-MAR-10
12.4(22)T4
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
12.4(22)XR3
12.4(22)XR3
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4T release.
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
12.4(22)YE2
12.4(22)YE2
12.4(24)YE
Not Vulnerable
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Affected 15.0-Based Releases
First Fixed Release for this Advisory
First Fixed Release for all Advisories in 24 March 2010 Bundle Publication
There are no affected 15.0 based releases
Affected 15.1-Based Releases
First Fixed Release for this Advisory
First Fixed Release for all Advisories in 24 March 2010 Bundle Publication
There are no affected 15.1 based releases
Cisco IOS XE Software Release
First Fixed Release
2.1.x
Vulnerable, Migrate to 2.3.2 or later
2.2.x
Vulnerable, Migrate to 2.3.2 or later
2.3.x
2.3.2
2.4.x
Not Vulnerable
2.5.x
Not Vulnerable
2.6.x
Not Vulnerable
Cisco IOS XR Software
This vulnerability can be addressed by applying the appropriate Software Maintenance Upgrade (SMU), per the table below. Installation of the appropriate SMU does not require a system reload. Refer to the document "Guidelines for Cisco IOS XR Software" at the following link for additional information on Cisco IOS XR Software and SMUs: http://www.cisco.com/en/US/prod/collateral/iosswrel/ps8803/ps5845/product_bulletin_c25-478699.htm
Cisco IOS XR Software Version
SMU ID
SMU Name
3.2.X
Vulnerable; Migrate to 3.5.2 or later.
3.3.X
Vulnerable; Migrate to 3.5.2 or later.
3.4.0
Vulnerable; Migrate to 3.5.2 or later.
3.4.1
AA03710
AA03707
c12k-mpls-3.4.1.CSCsj25893
hfr-mpls-3.4.1.CSCsj25893
3.4.2
AA03711
AA03708
c12k-mpls-3.4.2.CSCsj25893
hfr-mpls-3.4.2.CSCsj25893
3.4.3
AA03712
AA03709
c12k-mpls-3.4.3.CSCsj25893
hfr-mpls-3.4.3.CSCsj25893
3.5.2
Not Vulnerable
3.5.3
Not Vulnerable
3.5.4
Not Vulnerable
3.6.X
Not Vulnerable
3.7.X
Not Vulnerable
3.8.X
Not Vulnerable
3.9.X
Not Vulnerable
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The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory.
This vulnerability was discovered during internal testing.
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To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
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Revision 1.1
2010-March-26
Update made to iACL example.
Revision 1.0
2010-March-24
Initial public release.
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