[asterisk-users] Asterisk,, 10.3.1 Now Available (Security Release)

Asterisk Development Team asteriskteam at digium.com
Mon Apr 23 13:10:00 CDT 2012

The Asterisk Development Team has announced security releases for Asterisk 1.6.2,
1.8, and 10. The available security releases are released as versions,, and 10.3.1.

These releases are available for immediate download at

The release of Asterisk,, and 10.3.1 resolve the following two

 * A permission escalation vulnerability in Asterisk Manager Interface.  This
   would potentially allow remote authenticated users the ability to execute
   commands on the system shell with the privileges of the user running the
   Asterisk application.

 * A heap overflow vulnerability in the Skinny Channel driver.  The keypad
   button message event failed to check the length of a fixed length buffer
   before appending a received digit to the end of that buffer.  A remote
   authenticated user could send sufficient keypad button message events that the
   buffer would be overrun.

In addition, the release of Asterisk and 10.3.1 resolve the following

 * A remote crash vulnerability in the SIP channel driver when processing UPDATE
   requests.  If a SIP UPDATE request was received indicating a connected line
   update after a channel was terminated but before the final destruction of the
   associated SIP dialog, Asterisk would attempt a connected line update on a
   non-existing channel, 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-2012-004, AST-2012-005, and AST-2012-006, which were
released at the same time as this announcement.

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


The security advisories are available at:

 * http://downloads.asterisk.org/pub/security/AST-2012-004.pdf
 * http://downloads.asterisk.org/pub/security/AST-2012-005.pdf
 * http://downloads.asterisk.org/pub/security/AST-2012-006.pdf

Thank you for your continued support of Asterisk!

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