Gentoo Logo

Asterisk: Multiple vulnerabilities


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 201006-20 / asterisk
Release Date June 04, 2010
Latest Revision June 04, 2010: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
net-misc/asterisk < 1.2.37 >= 1.2.37 All supported architectures

Related bugreports: #281107, #283624, #284892, #295270


Multiple vulnerabilities in Asterisk might allow remote attackers to cause a Denial of Service condition, or conduct other attacks.

2.  Impact Information


Asterisk is an open source telephony engine and toolkit.


Multiple vulnerabilities have been reported in Asterisk:

  • Nick Baggott reported that Asterisk does not properly process overly long ASCII strings in various packets (CVE-2009-2726).
  • Noam Rathaus and Blake Cornell reported a flaw in the IAX2 protocol implementation (CVE-2009-2346).
  • amorsen reported an input processing error in the RTP protocol implementation (CVE-2009-4055).
  • Patrik Karlsson reported an information disclosure flaw related to the REGISTER message (CVE-2009-3727).
  • A vulnerability was found in the bundled Prototype JavaScript library, related to AJAX calls (CVE-2008-7220).


A remote attacker could exploit these vulnerabilities by sending a specially crafted package, possibly causing a Denial of Service condition, or resulting in information disclosure.

3.  Resolution Information


There is no known workaround at this time.


All Asterisk users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/asterisk-1.2.37"

NOTE: This is a legacy GLSA. Updates for all affected architectures are available since January 5, 2010. It is likely that your system is already no longer affected by this issue.

4.  References


Page updated June 04, 2010

Summary: This is a Gentoo Linux Security Advisory

Security Team
Contact Address

Donate to support our development efforts.

Copyright 2001-2015 Gentoo Foundation, Inc. Questions, Comments? Contact us.