Asterisk Remote Crash Vulnerability in SIP Channel Driver (AST-2011-012)

Medium Nessus Network Monitor Plugin ID 6043

Synopsis

The remote VoIP server is vulnerable to a denial of service attack.

Description

Versions of Asterisk 1.8.x earlier than 1.8.7.1 are potentially affected by a denial of service attack in the SIP channel driver. A remote authenticated attacker can cause a crash with a malformed request due to an uninitialized variable.

Solution

Upgrade to Asterisk 1.8.7.1

See Also

http://downloads.asterisk.org/pub/security/AST-2011-012.html

Plugin Details

Severity: Medium

ID: 6043

Family: Generic

Published: 2011/10/19

Modified: 2018/07/11

Dependencies: 3768

Nessus ID: 56922

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 4

Temporal Score: 3

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

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

CVSSv3

Base Score: 4.3

Temporal Score: 3.8

Vector: CVSS3#AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Temporal Vector: CVSS3#E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:asterisk:open_source

Patch Publication Date: 2011/10/17

Vulnerability Publication Date: 2011/10/17

Reference Information

CVE: CVE-2011-4063

BID: 50177