Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerability

2013-11-0616:00:00

tools.cisco.com

CVSS2

7.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

EPSS

0.002

Percentile

53.7%

JSON

A vulnerability exists in the Session Initiation Protocol (SIP) implementation in Cisco IOS Software that could allow an unauthenticated, remote attacker to cause a reload of an affected device or cause memory leaks that may result in system instabilities. To exploit this vulnerability, affected devices must be configured to process SIP messages. Limited Cisco IOS Software releases are affected.

Cisco has released software updates that address this vulnerability.

There are no workarounds for devices that must run SIP; however, mitigations are available to limit exposure to the vulnerability.

This advisory is available at the following link:

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20131106-sip[“https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20131106-sip”]

Affected configurations

Vulners

Node

ciscoiosMatch15.1xb

ciscoiosMatch15.1m

ciscoiosMatch15.1gc

ciscoiosMatch15.1\(4\)xb8

ciscoiosMatch15.1\(4\)xb8a

ciscoiosMatch15.1\(4\)m6

ciscoiosMatch15.1\(4\)m5

ciscoiosMatch15.1\(4\)m4

ciscoiosMatch15.1\(4\)gc

ciscoiosMatch15.1\(4\)gc1

VendorProductVersionCPE
ciscoios15.1xbcpe:2.3:o:cisco:ios:15.1xb:*:*:*:*:*:*:*
ciscoios15.1mcpe:2.3:o:cisco:ios:15.1m:*:*:*:*:*:*:*
ciscoios15.1gccpe:2.3:o:cisco:ios:15.1gc:*:*:*:*:*:*:*
ciscoios15.1(4)xb8cpe:2.3:o:cisco:ios:15.1\(4\)xb8:*:*:*:*:*:*:*
ciscoios15.1(4)xb8acpe:2.3:o:cisco:ios:15.1\(4\)xb8a:*:*:*:*:*:*:*
ciscoios15.1(4)m6cpe:2.3:o:cisco:ios:15.1\(4\)m6:*:*:*:*:*:*:*
ciscoios15.1(4)m5cpe:2.3:o:cisco:ios:15.1\(4\)m5:*:*:*:*:*:*:*
ciscoios15.1(4)m4cpe:2.3:o:cisco:ios:15.1\(4\)m4:*:*:*:*:*:*:*
ciscoios15.1(4)gccpe:2.3:o:cisco:ios:15.1\(4\)gc:*:*:*:*:*:*:*
ciscoios15.1(4)gc1cpe:2.3:o:cisco:ios:15.1\(4\)gc1:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
cisco	ios	15.1xb	cpe:2.3:o:cisco:ios:15.1xb:::::::*
cisco	ios	15.1m	cpe:2.3:o:cisco:ios:15.1m:::::::*
cisco	ios	15.1gc	cpe:2.3:o:cisco:ios:15.1gc:::::::*
cisco	ios	15.1(4)xb8	cpe:2.3:o:cisco:ios:15.1\(4\)xb8:::::::*
cisco	ios	15.1(4)xb8a	cpe:2.3:o:cisco:ios:15.1\(4\)xb8a:::::::*
cisco	ios	15.1(4)m6	cpe:2.3:o:cisco:ios:15.1\(4\)m6:::::::*
cisco	ios	15.1(4)m5	cpe:2.3:o:cisco:ios:15.1\(4\)m5:::::::*
cisco	ios	15.1(4)m4	cpe:2.3:o:cisco:ios:15.1\(4\)m4:::::::*
cisco	ios	15.1(4)gc	cpe:2.3:o:cisco:ios:15.1\(4\)gc:::::::*
cisco	ios	15.1(4)gc1	cpe:2.3:o:cisco:ios:15.1\(4\)gc1:::::::*