GLSA 201206-05: Asterisk: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	Asterisk: Multiple vulnerabilities
Date:	06/21/2012
Bugs:	#413353, #418189, #418191
ID:	201206-05

Synopsis

Multiple vulnerabilities in Asterisk might allow remote attackers to execute arbitrary code.

Background

Asterisk is an open source telephony engine and toolkit.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-misc/asterisk	< 1.8.12.1	>= 1.8.12.1	All supported architectures

Description

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.

Resolution

All Asterisk users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.8.12.1"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201206-05.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.