Asterisk Heap-Based Buffer Overflow in Skinny Channel Driver (AST-2012-005)

high Nessus Plugin ID 58905
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VPR Score: 5.9

Synopsis

A telephony application running on the remote host is affected by a heap-based buffer overflow vulnerability.

Description

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, or possibly inject arbitrary code by sending repeated KEYPAD_BUTTON_MESSAGE events over a Skinny channel to overflow a buffer.

Solution

Upgrade to Asterisk 1.6.2.24 / 1.8.11.1 / 10.3.1 or apply the patches listed in the Asterisk advisory.

See Also

http://downloads.asterisk.org/pub/security/AST-2012-005.html

https://issues.asterisk.org/jira/browse/ASTERISK-19592

Plugin Details

Severity: High

ID: 58905

File Name: asterisk_ast_2012_005.nasl

Version: 1.14

Type: remote

Family: Misc.

Published: 4/27/2012

Updated: 6/27/2018

Dependencies: asterisk_detection.nasl

Configuration: Enable paranoid mode

Risk Information

Risk Factor: High

VPR Score: 5.9

CVSS v2.0

Base Score: 9

Temporal Score: 6.7

Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C

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

Vulnerability Information

CPE: cpe:/a:digium:asterisk

Required KB Items: asterisk/sip_detected, Settings/ParanoidReport

Exploit Ease: No known exploits are available

Patch Publication Date: 4/23/2012

Vulnerability Publication Date: 3/26/2012

Reference Information

CVE: CVE-2012-2415

BID: 53210