The Asterisk Development Team has announced a security release for Asterisk 1.8
The available security release is released as version 1.8.7.1

This release is available for immediate download at http://downloads.asterisk.org/pub/telephony/asterisk/releases

The release of Asterisk 1.8.7.1 resolves an issue with SIP URI parsing which can lead to a remotely exploitable crash:

Remote Crash Vulnerability in SIP channel driver (AST-2011-012)

The issue and resolution is described in the AST-2011-012 security advisory.

For more information about the details of this vulnerability, please read the security advisory AST-2011-012, which was released at the same time as this
announcement.

For a full list of changes in the current release, please see the ChangeLog:

http://downloads.asterisk.org/pub/telephony/asterisk/releases/ChangeLog-1.8.7.1

Security advisory AST-2011-012 is available at:

http://downloads.asterisk.org/pub/security/AST-2011-012.pdf

Thank you for your continued support of Asterisk!