CVE-2013-5642

MEDIUM

Description

The SIP channel driver (channels/chan_sip.c) in Asterisk Open Source 1.8.x before 1.8.23.1, 10.x before 10.12.3, and 11.x before 11.5.1; Certified Asterisk 1.8.15 before 1.8.15-cert3 and 11.2 before 11.2-cert2; and Asterisk Digiumphones 10.x-digiumphones before 10.12.3-digiumphones allows remote attackers to cause a denial of service (NULL pointer dereference, segmentation fault, and daemon crash) via an invalid SDP that defines a media description before the connection description in a SIP request.

References

http://archives.neohapsis.com/archives/bugtraq/2013-08/0174.html

http://downloads.asterisk.org/pub/security/AST-2013-005.html

http://osvdb.org/96690

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/62022

http://www.securitytracker.com/id/1028957

https://issues.asterisk.org/jira/browse/ASTERISK-22007

Details

Source: MITRE

Published: 2013-09-09

Updated: 2013-09-12

Type: CWE-20

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