CVE-2013-5641

MEDIUM

Description

The SIP channel driver (channels/chan_sip.c) in Asterisk Open Source 1.8.17.x through 1.8.22.x, 1.8.23.x before 1.8.23.1, and 11.x before 11.5.1 and Certified Asterisk 1.8.15 before 1.8.15-cert3 and 11.2 before 11.2-cert2 allows remote attackers to cause a denial of service (NULL pointer dereference, segmentation fault, and daemon crash) via an ACK with SDP to a previously terminated channel. NOTE: some of these details are obtained from third party information.

References

http://archives.neohapsis.com/archives/bugtraq/2013-08/0175.html

http://downloads.asterisk.org/pub/security/AST-2013-004.html

http://osvdb.org/96691

http://seclists.org/bugtraq/2013/Aug/185

http://secunia.com/advisories/54534

http://secunia.com/advisories/54617

http://www.debian.org/security/2013/dsa-2749

http://www.mandriva.com/security/advisories?name=MDVSA-2013:223

http://www.securityfocus.com/bid/62021

http://www.securitytracker.com/id/1028956

https://issues.asterisk.org/jira/browse/ASTERISK-21064

Details

Source: MITRE

Published: 2013-09-09

Updated: 2013-09-12

Type: CWE-119

Risk Information

CVSS v2.0

Base Score: 5

Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P)

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM