Executive Summary

Title Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerability
Name cisco-sa-20131106-sip First vendor Publication 2013-11-06
Vendor Cisco Last vendor Modification 2013-11-06
Severity (Vendor) N/A Revision 1.0

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C)
Cvss Base Score 7.8 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


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 free 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:


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Original Source

Url : http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco (...)

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-399 Resource Management Errors

CPE : Common Platform Enumeration

Os 1

Information Assurance Vulnerability Management (IAVM)

Date Description
2013-11-14 IAVM : 2013-A-0210 - Cisco IOS Denial of Service Vulnerability
Severity : Category I - VMSKEY : V0042299

Nessus® Vulnerability Scanner

Date Description
2014-03-31 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20140326-RSP72010GE.nasl - Type : ACT_GATHER_INFO
2013-11-14 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20131106-sip.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-04-01 14:39:23
  • Multiple Updates
2014-02-17 10:22:12
  • Multiple Updates
2013-11-15 21:20:56
  • Multiple Updates
2013-11-08 21:29:18
  • Multiple Updates
2013-11-06 21:19:39
  • First insertion