GLSA 201209-15: Asterisk: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	Asterisk: Multiple vulnerabilities
Date:	09/26/2012
Bugs:	#425050, #433750
ID:	201209-15

Synopsis

Multiple vulnerabilities have been found in Asterisk, the worst of which may allow execution of arbitrary code.

Background

Asterisk is an open source telephony engine and toolkit.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-misc/asterisk	< 1.8.15.1	>= 1.8.15.1	All supported architectures

Description

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.

Resolution

All Asterisk users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.8.15.1"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201209-15.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.