[ GLSA 201006-20 ] Asterisk: Multiple vulnerabilities

[GLSA]

Gentoo Linux Security Advisory

Title: Asterisk: Multiple vulnerabilities (GLSA 201006-20)
Severity: normal
Exploitable: remote
Date: June 04, 2010
Bug(s): #281107, #283624, #284892, #295270
ID: 201006-20

Synopsis


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


Background


Asterisk is an open source telephony engine and toolkit.


Affected Packages

Package: net-misc/asterisk
Vulnerable: < 1.2.37
Unaffected: >= 1.2.37
Architectures: All supported architectures


Description


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).

Impact


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.


Workaround


There is no known workaround at this time.


Resolution


All Asterisk users should upgrade to the latest version: