GLSA-201206-05 : 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-201206-05
(Asterisk: Multiple vulnerabilities)

Multiple vulnerabilities have been found in Asterisk:
An error in manager.c allows shell access through the MixMonitor
application, GetVar, or Status (CVE-2012-2414).
An error in chan_skinny.c could cause a heap-based buffer overflow
(CVE-2012-2415).
An error in chan_sip.c prevents Asterisk from checking if a channel
exists before connected line updates (CVE-2012-2416).
An error in chan_iax2.c may cause an invalid pointer to be called
(CVE-2012-2947).
chan_skinny.c contains a NULL pointer dereference (CVE-2012-2948).

Impact :

A remote attacker could execute arbitrary code with the privileges of
the process or cause a Denial of Service condition.

Workaround :

There is no known workaround at this time.

See also :

http://www.gentoo.org/security/en/glsa/glsa-201206-05.xml

Solution :

All Asterisk users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-misc/asterisk-1.8.12.1'

Risk factor :

Medium / CVSS Base Score : 6.5
(CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P)
CVSS Temporal Score : 5.4
(CVSS2#E:F/RL:OF/RC:C)
Public Exploit Available : true

Family: Gentoo Local Security Checks

Nessus Plugin ID: 59633 ()

Bugtraq ID: 53205
53206
53210
53722
53723

CVE ID: CVE-2012-2414
CVE-2012-2415
CVE-2012-2416
CVE-2012-2947
CVE-2012-2948