An asterisk security update has been released for Debian GNU/Linux

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Debian Security Advisory DSA-2550-1 security@debian.org
http://www.debian.org/security/ Moritz Muehlenhoff
September 18, 2012 http://www.debian.org/security/faq
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Package : asterisk
Vulnerability : several
Problem type : remote
Debian-specific: no
CVE ID : CVE-2012-2186 CVE-2012-3812 CVE-2012-3863 CVE-2012-4737

Several vulnerabilities were discovered in Asterisk, a PBX and telephony
toolkit, allowing privilege escalation in the Asterisk Manager, denial of
service or privilege escalation.

More detailed information can be found in the Asterisk advisories:
http://downloads.asterisk.org/pub/security/AST-2012-010.html
http://downloads.asterisk.org/pub/security/AST-2012-011.html
http://downloads.asterisk.org/pub/security/AST-2012-012.html
http://downloads.asterisk.org/pub/security/AST-2012-013.html

For the stable distribution (squeeze), these problems have been fixed in
version 1:1.6.2.9-2+squeeze7.

For the testing distribution (wheezy) and the unstable distribution (sid),
these problems have been fixed in version 1:1.8.13.1~dfsg-1.

We recommend that you upgrade your asterisk packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

  DSA 2550-1: asterisk security update