GLSA 201202-06: Asterisk: Denial of Service

http://security.gentoo.org/

Severity:	normal
Title:	Asterisk: Denial of Service
Date:	02/22/2012
Bugs:	#399507
ID:	201202-06

Synopsis

A vulnerability in Asterisk could allow a remote attacker to cause a Denial of Service condition.

Background

Asterisk is an open source telephony engine and toolkit.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-misc/asterisk	< 1.8.8.2	>= 1.8.8.2	All supported architectures

Description

A vulnerability has been found in Asterisk's handling of certain encrypted streams where the res_srtp module has been loaded but video support has not been enabled.

Impact

A remote attacker could send a specially crafted SDP message to the Asterisk daemon, possibly resulting in 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-1.8.8.2"

References

CVE-2012-0885

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201202-06.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.