AV:N/AC:L/Au:N/C:N/I:N/A:C/E:F/RL:OF/RC:C
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The H.323 implementation in Cisco IOS Software contains two vulnerabilities that may be exploited remotely to cause a denial of service (DoS) condition on a device that is running a vulnerable version of Cisco IOS Software.
Cisco has released software updates that address these vulnerabilities. There are no workarounds to mitigate these vulnerabilities other than disabling H.323 on the vulnerable device if H.323 is not required.
This advisory is posted at https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20100324-h323.
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 the following 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 the following link:
http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar10.html
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This vulnerability only affects devices running Cisco IOS Software with H.323 voice services enabled.
Vulnerable Products
Cisco devices that are running affected Cisco IOS Software versions that are configured to process H.323 messages are affected by these vulnerabilities. H.323 is not enabled by default.
To determine if the Cisco IOS Software device is running H.323 services, use the show process cpu | include 323 command, as shown in the following example:
Router#show process cpu | include 323 249 16000 3 5333 0.00% 0.00% 0.00% 0 CCH323_CT 250 0 1 0 0.00% 0.00% 0.00% 0 CCH323_DNS Router#
In the previous example the processes CCH323_CT and CCH323_DNS are running on the device; subsequently, the device is listening to H.323 messages. The device is vulnerable as long as any of these processes (or similar) are active.
Note: Only H.323 listening on port TCP 1720 is affected.
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.
The following 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 (c) 1986-2008 by cisco Systems, Inc. Compiled Mon 17-Mar-08 14:39 by dchih !--- output truncated
The following example identifies a Cisco product that is running Cisco IOS Software Release 12.4(20)T with an installed 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 (c) 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 the following link: http://www.cisco.com/web/about/security/intelligence/ios-ref.html
Products Confirmed Not Vulnerable
Cisco IOS XR Software is not affected by these vulnerabilities.
No other Cisco products are currently known to be affected by these vulnerabilities.
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H.323 is the ITU standard for real-time multimedia communications and conferencing over packet-based (IP) networks. A subset of the H.323 standard is H.225.0, a standard used for call signaling protocols and media stream packetization over IP networks.
The H.323 implementation in Cisco IOS Software contains two DoS vulnerabilities. An attacker can exploit these vulnerabilities remotely by sending crafted H.323 packets to the affected device that is running Cisco IOS Software. A TCP three-way handshake is needed to exploit these vulnerabilities.
When exploited, the first vulnerability may lead to an interface queue wedge. The second vulnerability may cause a memory leak and, in most cases, the device to reload.
An interface queue wedge is a class of vulnerability in which certain packets are received and queued by a Cisco IOS router or switch, but due to a processing error, are never removed from the queue.
Received packets are counted against the interface input "queue," which is of a limited and relatively small size. For example, on most interface types on most platforms the default interface input queue is 75 packets, a value that can be configured via the hold-queue value in interface configuration command. Once the input queue contains nothing but packets that, due to a bug, will never be dequeued, the queue is said to be wedged. More recently this condition has been termed a "blocked interface".
This can be seen on a Cisco IOS device when the input queue size is equal to or greater than (depending on the Cisco IOS Software Release) the input queue max value, as shown below. In this example, the current "size" of the input queue is 75, which is equal to the "max" size of the input queue, which is also 75.
Router#show interface Ethernet 0/0 Ethernet0/0 is up, line protocol is up Hardware is AmdP2, address is 0001.0001.0001 Internet address is 10.1.1.100/24 MTU 1500 bytes, BW 10000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) ARP type: ARPA, ARP Timeout 04:00:00 Last input 00:00:20, output 00:00:05, output hang never Last clearing of "show interface" counters never Input queue: 75/75/44/0 (size/max/drops/flushes); Total output drops: 0 Queueing strategy: fifo Output queue: 0/40 (size/max) 5 minute input rate 4000 bits/sec, 9 packets/sec 5 minute output rate 0 bits/sec, 0 packets/sec 2937 packets input, 182298 bytes, 0 no buffer Received 7 broadcasts, 0 runts, 0 giants, 0 throttles 0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored 0 input packets with dribble condition detected 58 packets output, 6540 bytes, 0 underruns 0 output errors, 0 collisions, 1 interface resets 0 babbles, 0 late collision, 0 deferred 0 lost carrier, 0 no carrier 0 output buffer failures, 0 output buffers swapped out
For more information about queue wedges and a few detection mechanisms that may be used to identify a blocked interface on Cisco IOS Software (including an EEM script specifically for this purpose and a whitepaper describing how this condition can be detected using SNMP) go to: http://blogs.cisco.com/security/comments/cisco_ios_queue_wedges_explained/
To display detected memory leaks, use the show memory debug leaks command in privileged EXEC mode.
Router#show memory debug leaks Adding blocks for GD... I/O memory Address Size Alloc_pc PID Alloc-Proc Name Processor memory Address Size Alloc_pc PID Alloc-Proc Name 640854D4 1940 622265A4 196 CCH323_CT CCH323_CT 640EA5E8 1940 622265A4 196 CCH323_CT CCH323_CT 65961B38 1940 622265A4 196 CCH323_CT CCH323_CT
The previous example shows a memory leak in the process CCH323_CT. The show memory debug leaks command was introduced in Cisco IOS Software versions 12.3(8)T1 and 12.2(25)S, respectively.
Caution: All show memory debug commands must be used on customer networks only to diagnose the router for memory leaks when memory depletion is observed. These commands may cause high CPU utilization and may cause time sensitive protocols to flap. These commands are recommended to be used in maintenance windows when the device is not in a scaled condition.
These vulnerabilities are documented in Cisco Bug IDs CSCta19962 ( registered customers only) and CSCtb93855 ( registered customers only) and have been assigned CVE IDs CVE-2010-0582 and CVE-2010-0583.
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There are no workarounds to mitigate these vulnerabilities apart from disabling H.323 if the Cisco IOS device does not need it. Applying access lists on interfaces that should not accept H.323 traffic and putting firewalls in strategic locations may greatly reduce exposure until an upgrade can be performed.
Cisco provides Solution Reference Network Design (SRND) guides to help design and deploy networking solutions, which can be found at http://www.cisco.com/go/srnd Voice Security best practices are covered in the Cisco Unified Communications SRND Based on Cisco Unified Communications Manager 6.x at http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/6x/security.html.
You can use the call service stop forced command under the voice service voip mode, as shown in the following example:
voice service voip h323 call service stop forced
Note: The call service stop forced command disables all H.323 call processing.
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 Denial of Service Vulnerabilities in Cisco Unified Communications Manager and Cisco IOS Software", which is available at the following location: https://sec.cloudapps.cisco.com/security/center/content/CiscoAppliedMitigationBulletin/cisco-amb-20100324-voice
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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 "Bundle First Fixed Release" 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
There are no affected 12.0 based releases
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
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
Not Vulnerable
Releases up to and including 12.1(7a)E1a are not vulnerable; migrate to any release in 12.2SXF
Not Vulnerable
Releases up to and including 12.1(6)EA2c are not vulnerable. Releases 12.1(8)EA1c 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
Releases up to and including 12.1(7)EC are not vulnerable; migrate to 12.2SCB
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
Not Vulnerable
Vulnerable; migrate to any release in 12.2
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
Vulnerable; migrate to any release in 12.2
Vulnerable; migrate to any release in 12.2
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
Not Vulnerable
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
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.
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 12.2SB
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 12.2S
Vulnerable; migrate to any release in 12.2SRE
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
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
Not Vulnerable
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
Not Vulnerable
Vulnerable; first fixed in 12.2SRC
Not Vulnerable
Vulnerable; first fixed in 12.2SRC
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
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
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
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
Releases up to and including 12.2(15)MC1 are not vulnerable.
Releases 12.2(15)MC2b and later are not vulnerable; first fixed in 15.0M
Vulnerable; first fixed in 12.4
Not Vulnerable
Not Vulnerable
Not Vulnerable
Releases prior to 12.2(30)S are vulnerable, release 12.2(30)S and later are not vulnerable;
Not Vulnerable
12.2(33)SB8
12.2(31)SB18; Available on 24-MAR-10
Not Vulnerable
Vulnerable; migrate to any release in 12.2SRE
Not Vulnerable
Vulnerable; first fixed in 12.2SCB
Not Vulnerable
12.2(33)SCB6
Not Vulnerable
12.2(33)SCC1
Not Vulnerable
Not Vulnerable
Not Vulnerable
12.2(50)SE4; Available on 25-MAR-10
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Vulnerable; first fixed in 12.2SE
Not Vulnerable
Vulnerable; first fixed in 12.2SE
Not Vulnerable
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
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
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; first fixed in 12.2SRD
Not Vulnerable
Vulnerable; first fixed in 12.2SRD
Not Vulnerable
12.2(33)SRC5
Not Vulnerable
12.2(33)SRD3
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Not Vulnerable
Vulnerable; migrate to any release in 15.0M or a fixed 12.4 release.
Not Vulnerable
Releases up to and including 12.2(18)SV2 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
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 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
Not Vulnerable
Vulnerable; first fixed in 12.2SXF
Not Vulnerable
Vulnerable; first fixed in 12.2SXF
Not Vulnerable
Vulnerable; first fixed in 12.2SXF
Not Vulnerable
Vulnerable; first fixed in 12.2SXF
Not Vulnerable
Vulnerable; first fixed in 12.2SXF
Not Vulnerable
12.2(18)SXF17a
Not Vulnerable
12.2(33)SXH6
Not Vulnerable
12.2(33)SXI2a
12.2(33)SXI3
Not Vulnerable
Vulnerable; migrate to any release in 12.2SRE
Not Vulnerable
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.
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.
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
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.
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
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
12.2(33)XNE1; 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
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
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.
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; 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
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
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
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; 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; 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; 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
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(11)YV1 are vulnerable, release 12.2(11)YV1 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; 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
Vulnerable; Contact your support organization per the instructions in Obtaining Fixed Software section of this advisory
Not Vulnerable
Vulnerable; first fixed in 12.2SXF
Releases up to and including 12.2(8)ZB 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; 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.
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; 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
Vulnerable; first fixed in 12.2SXH
Not Vulnerable
Vulnerable; migrate to any release in 12.2SRE
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
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.
Not Vulnerable
Vulnerable; first fixed in 12.2SCB
Not Vulnerable
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 15.0M
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 prior to 12.3(2)XA7 are vulnerable, release 12.3(2)XA7 and later are not vulnerable; first fixed in 15.0M
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 12.4 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; 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
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.
Note: 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)XI11 are vulnerable, release 12.3(7)XI11 and later are not vulnerable
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.
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 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 12.4XN
Vulnerable; first fixed in 12.4XR
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.
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.
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.
Releases prior to 12.3(11)YK3 are vulnerable, release 12.3(11)YK3 and later are not vulnerable; first fixed in 12.4T
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.
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 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 12.4 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)
15.0(1)M1
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
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.
12.4(15)T12
12.4(24)T3; Available on 26-MAR-10
12.4(22)T4
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 12.4 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.
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.
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.
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 up to and including 12.4(15)XM are not vulnerable.
Releases 12.4(15)XM3 and later are not vulnerable; first fixed in 12.4T
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; 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.
Not Vulnerable
12.4(22)XR3
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; 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.
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.
12.4(22)YB5
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(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
15.0(1)M1
15.0(1)M1
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
IOS-XE Release
First Fixed Release
2.1.x
Not Vulnerable
2.2.x
Not Vulnerable
2.3.x
Not Vulnerable
2.4.x
Not Vulnerable
2.5.x
2.5.1
2.6.x
Not Vulnerable
-
The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory.
This vulnerability was found during internal testing.
-
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.
-
Revision 1.1
2010-March-26
Added caution about debug commands.
Revision 1.0
2010-March-24
Initial public release.
-
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
A stand-alone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy, and may lack important information or contain factual errors. The information in this document is intended for end-users of Cisco products.