Debian: DSA-2367-1 Moderate Security Advisory for Asterisk Exploits

debian

December 19, 2011

Several vulnerabilities have been discovered in Asterisk, an Open Source PBX and telephony toolkit: CVE-2011-4597

Topics Covered

security advisory moderate remote exploit debian asterisk

Summary

Several vulnerabilities have been discovered in Asterisk, an Open
Source PBX and telephony toolkit:

CVE-2011-4597

Ben Williams discovered that it was possible to enumerate SIP
user names in some configurations. Please see the upstream
advisory for details:
http://downloads.asterisk.org/pub/security/AST-2011-013.html

This update only modifies the sample sip.conf configuration
file. Please see README.Debian for more information on how
to update your installation.

CVE-2011-4598

Kristijan Vrban discovered that Asterisk can be crashed with
malformed SIP packets if the "automon" feature is enabled.

For the oldstable distribution (lenny), this problem has been fixed in
version 1:1.4.21.2~dfsg-3+lenny6.

For the stable distribution (squeeze), this problem has been fixed in
version 1:1.6.2.9-2+squeeze4.

For the unstable distribution (sid), this problem has been fixed in
version 1:1.8.8.0~dfsg-1.

We recommend that you upgrade your asterisk packages.

Further information about Debia...