Asterisk Remote Crash Vulnerability in Skinny Channel Driver (AST-2012-009)

Low Nessus Plugin ID 59714


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 vulnerability that could allow a remote attacker to crash the server. This issue could be exploited when the attacker has a valid SCCP (Skinny) ID and closes a connection when in certain call states. A NULL pointer is left behind and can cause the server to crash when the pointer is later dereferenced.

Note the fix for AST-2012-008 was incomplete.


Upgrade to Asterisk 10.5.1 or apply the patches listed in the Asterisk advisory.

See Also

Plugin Details

Severity: Low

ID: 59714

File Name: asterisk_ast_2012_009.nasl

Version: $Revision: 1.12 $

Type: remote

Family: Misc.

Published: 2012/06/26

Modified: 2016/11/11

Dependencies: 63202

Risk Information

Risk Factor: Low


Base Score: 3.5

Temporal Score: 3

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

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

Vulnerability Information

CPE: cpe:/a:digium:asterisk

Required KB Items: asterisk/sip_detected, Settings/ParanoidReport

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2012/06/14

Vulnerability Publication Date: 2012/05/30

Reference Information

CVE: CVE-2012-3553

BID: 54017

OSVDB: 83040