National Cyber Awareness System
Vulnerability Summary for CVE-2011-2665
Original release date:07/06/2011
Last revised:09/07/2011
Source:
US-CERT/NIST
Overview
reqresp_parser.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.4.3 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a SIP packet with a Contact header that lacks a < (less than) character.
Description
Per: http://cwe.mitre.org/data/definitions/476.html
'CWE-476: NULL Pointer Dereference'
Impact
CVSS Severity (version 2.0):
Impact Subscore:
2.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Allows disruption of serviceUnknown
References to Advisories, Solutions, and Tools
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External Source: CONFIRM
Name: http://downloads.asterisk.org/pub/security/AST-2011-009-1.8.diff
Type: Patch Information
External Source: DEBIAN
Name: DSA-2276
External Source: SECUNIA
Name: 45239
External Source: SECUNIA
Name: 45201
External Source: SECUNIA
Name: 45048
Type: Advisory
External Source: FEDORA
Name: FEDORA-2011-8914
External Source: CONFIRM
Name: http://downloads.asterisk.org/pub/security/AST-2011-009.html
Type: Advisory
