Asterisk Remote Crash Vulnerability in SIP Channel Driver (AST-2012-006)

Low Nessus Plugin ID 58906


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 by sending an UPDATE over a SIP channel after the channel dialog has been destroyed, but before the SIP dialog associated with the call has been destroyed.

Only servers that have 'trustrpid' set to 'True' are affected.


Upgrade to Asterisk / 10.3.1 / C.3.7.4 or apply the patches listed in the Asterisk advisory. Alternatively, set 'trustrpid' to 'False'.

See Also

Plugin Details

Severity: Low

ID: 58906

File Name: asterisk_ast_2012_006.nasl

Version: $Revision: 1.12 $

Type: remote

Family: Misc.

Published: 2012/04/27

Modified: 2016/11/11

Dependencies: 63202

Risk Information

Risk Factor: Low


Base Score: 3.5

Temporal Score: 2.6

Vector: CVSS2#AV:N/AC:M/Au:S/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: 2012/04/23

Vulnerability Publication Date: 2012/04/16

Reference Information

CVE: CVE-2012-2416

BID: 53205

OSVDB: 81456