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Asterisk: Denial of Service

Content:

1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 201202-06 / asterisk
Release Date February 22, 2012
Latest Revision February 22, 2012: 1
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
net-misc/asterisk < 1.8.8.2 >= 1.8.8.2 All supported architectures

Related bugreports: #399507

Synopsis

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

2.  Impact Information

Background

Asterisk is an open source telephony engine and toolkit.

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.

3.  Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Asterisk users should upgrade to the latest version:

Code Listing 3.1: Resolution

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.8.8.2"

4.  References



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Page updated February 22, 2012

Summary: This is a Gentoo Linux Security Advisory

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