National Vulnerability Database (NVD) National Vulnerability Database (CVE-2007-2297)

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Last updated: Wed May 22 02:45:00 EDT 2013

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Vulnerability Summary for CVE-2007-2297

Original release date:04/26/2007

Last revised:09/05/2008

Source: US-CERT/NIST

Overview

The SIP channel driver (chan_sip) in Asterisk before 1.2.18 and 1.4.x before 1.4.3 does not properly parse SIP UDP packets that do not contain a valid response code, which allows remote attackers to cause a denial of service (crash).

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:7.8 (HIGH) (AV:N/AC:L/Au:N/C:N/I:N/A:C) (legend)

Impact Subscore: 6.9

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: SECTRACK

Name: 1017954

Type: Patch Information

Hyperlink:http://www.securitytracker.com/id?1017954

External Source: BUGTRAQ

Name: 20070425 ASA-2007-011: Multiple problems in SIP channel parser handling response codes

Type: Advisory; Patch Information

Hyperlink:http://www.securityfocus.com/archive/1/archive/1/466882/100/0/threaded

External Source: CONFIRM

Name: http://www.asterisk.org/files/ASA-2007-011.pdf

Hyperlink:http://www.asterisk.org/files/ASA-2007-011.pdf

External Source: MISC