Asterisk SIP Channel Driver Invalid SDP Denial of Service (AST-2013-005)

Medium Nessus Plugin ID 69559


A telephony application running on the remote host is affected by a denial of service vulnerability.


According to the version in its SIP banner, the version of Asterisk running on the remote host is potentially affected by a denial of service vulnerability.

The application does not properly handle an invalid SDP in a SIP request if such a request defines media descriptions and then defines connection data.


Upgrade to Asterisk / 10.12.3 / 11.5.1 / Certified Asterisk 1.8.15-cert3 / 11.2-cert2, or apply the appropriate patch listed in the Asterisk advisory.

See Also

Plugin Details

Severity: Medium

ID: 69559

File Name: asterisk_ast_2013_005.nasl

Version: $Revision: 1.5 $

Type: remote

Family: Misc.

Published: 2013/09/03

Modified: 2016/11/11

Dependencies: 63202

Risk Information

Risk Factor: Medium


Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: cpe:/a:digium:asterisk

Required KB Items: asterisk/sip_detected, Settings/ParanoidReport

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2013/08/27

Vulnerability Publication Date: 2013/08/27

Reference Information

CVE: CVE-2013-5642

BID: 62022

OSVDB: 96690