A new version of the open source telephony system, Asterisk, is now available. Because it fixes a recently discovered security vulnerability, all users of Asterisk 1.4 are urged to update as soon as they can.
According to the release announcement the new version contains a “very large number of bug fixes”. This includes a fix for the recently discovered security vulnerability.
The new release also contains a complete rewrite of the Shared Line Appearance (SLA) support that was first released as part of Asterisk 1.4.0. The new version of this functionality has been tested against a variety of phones and provides much more flexibility and configurability (along with actually working properly in most scenarios, which the original implementation failed to do).