Asterisk 1.8.11-cert4, 1.8.13.1, 10.5.2, 10.5.2-digiumphones Now Available (Security Release)

The Asterisk Development Team has announced security releases for Certified
Asterisk 1.8.11 and Asterisk 1.8 and 10. The available security releases are released as versions 1.8.11-cert4, 1.8.13.1, 10.5.2, and 10.5.2-digiumphones.

These releases are available for immediate download at http://downloads.asterisk.org/pub/telephony/asterisk/releases

The release of Asterisk 1.8.11-cert4, 1.8.13.1, 10.5.2, and 10.5.2-digiumphones resolve the following two issues:

* If Asterisk sends a re-invite and an endpoint responds to the re-invite with
a provisional response but never sends a final response, then the SIP dialog
structure is never freed and the RTP ports for the call are never released. If
an attacker has the ability to place a call, they could create a denial of
service by using all available RTP ports.

* If a single voicemail account is manipulated by two parties simultaneously,
a condition can occur where memory is freed twice causing a crash.

These issues and their resolution are described in the security advisories.

For more information about the details of these vulnerabilities, please read security advisories AST-2012-010 and AST-2012-011, which were released at the same time as this announcement.

For a full list of changes in the current releases, please see the ChangeLogs:

http://downloads.asterisk.org/pub/telephony/certified-asterisk/releases/ChangeLog-1.8.11-cert4

http://downloads.asterisk.org/pub/telephony/asterisk/releases/ChangeLog-1.8.13.1

http://downloads.asterisk.org/pub/telephony/asterisk/releases/ChangeLog-10.5.2

http://downloads.asterisk.org/pub/telephony/asterisk/releases/ChangeLog-10.5.2-digiumphones

The security advisories are available at:

* http://downloads.asterisk.org/pub/security/AST-2012-010.pdf
* http://downloads.asterisk.org/pub/security/AST-2012-011.pdf

Thank you for your continued support of Asterisk!