GLSA 201006-20: Asterisk: Multiple vulnerabilities

Title:Asterisk: Multiple vulnerabilities
Bugs: #281107, #283624, #284892, #295270


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


Asterisk is an open source telephony engine and toolkit.

Affected packages

Package Vulnerable Unaffected Architecture(s)
net-misc/asterisk < 1.2.37 >= 1.2.37 All supported architectures


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.


There is no known workaround at this time.


All Asterisk users should upgrade to the latest version:

    # 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.



This GLSA and any updates to it are available for viewing at the Gentoo Security Website:


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