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Debian Security Advisory DSA-2835-1                   security@debian.org
http://www.debian.org/security/                        Moritz Muehlenhoff
January 05, 2014                       http://www.debian.org/security/faq
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Package        : asterisk
Vulnerability  : buffer overflow
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2013-7100
Debian Bug     : 732355

Jan Juergens discovered a buffer overflow in the parser for SMS messages
in Asterisk. 

An additional change was backported, which is fully described in
http://downloads.asterisk.org/pub/security/AST-2013-007.html

With the fix for AST-2013-007, a new configuration option was added in 
order to allow the system adminitrator to disable the expansion of 
"dangerous" functions (such as SHELL()) from any interface which is not
 
the dialplan. In stable and oldstable this option is disabled by default.
To enable it add the following line to the section '[options]' in
/etc/asterisk/asterisk.conf (and restart asterisk)

  live_dangerously = no

For the oldstable distribution (squeeze), this problem has been fixed in
version 1:1.6.2.9-2+squeeze12.

For the stable distribution (wheezy), this problem has been fixed in
version 1:1.8.13.1~dfsg1-3+deb7u3.

For the testing distribution (jessie), this problem has been fixed in
version 1:11.7.0~dfsg-1.

For the unstable distribution (sid), this problem has been fixed in
version 1:11.7.0~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/

Mailing list: debian-security-announce@lists.debian.org
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