GLSA-201209-15 : Asterisk: Multiple vulnerabilities

This script is Copyright (C) 2012-2014 Tenable Network Security, Inc.


Synopsis :

The remote Gentoo host is missing one or more security-related
patches.

Description :

The remote host is affected by the vulnerability described in GLSA-201209-15
(Asterisk: Multiple vulnerabilities)

Multiple vulnerabilities have been found in Asterisk:
An error in manager.c allows shell access (CVE-2012-2186).
An error in Asterisk could cause all RTP ports to be exhausted
(CVE-2012-3812).
A double-free error could occur when two parties attempt to
manipulate the same voicemail account simultaneously (CVE-2012-3863).
Asterisk does not properly implement certain ACL rules
(CVE-2012-4737).

Impact :

A remote, authenticated attacker could execute arbitrary code with the
privileges of the process, cause a Denial of Service condition, or bypass
outbound call restrictions.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-201209-15.xml

Solution :

All Asterisk users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-misc/asterisk-1.8.15.1'

Risk factor :

High / CVSS Base Score : 9.0
(CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C)
CVSS Temporal Score : 7.4
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Gentoo Local Security Checks

Nessus Plugin ID: 62344 ()

Bugtraq ID: 54317
54327
55335
55351

CVE ID: CVE-2012-2186
CVE-2012-3812
CVE-2012-3863
CVE-2012-4737