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Debian Security Advisory DSA-2225-1                   security@debian.org
http://www.debian.org/security/                        Moritz Muehlenhoff
April 25, 2011                         http://www.debian.org/security/faq
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Package        : asterisk
Vulnerability  : several
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2011-1147 CVE-2011-1174 CVE-2011-1175 CVE-2011-1507 
                 CVE-2011-1599 

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

CVE-2011-1147 

   Matthew Nicholson discovered that incorrect handling of UDPTL packets
   may lead to denial of service of the execution of arbitrary code.

CVE-2011-1174

   Blake Cornell discovered that incorrect connection handling in the
   manager interface may lead to denial of service.

CVE-2011-1175

   Blake Cornell and Chris May discovered that incorrect TCP connection 
   handling may lead to denial of service.

CVE-2011-1507 

   Tzafrir Cohen discovered that insufficient limitation of connection
   requests in several TCP based services may lead to denial of service.
   Please see http://downloads.asterisk.org/pub/security/AST-2011-005.html
   for details.

CVE-2011-1599 

   Matthew Nicholson discovered a privilege escalation vulnerability in
   the manager interface.

For the oldstable distribution (lenny), this problem has been fixed in
version 1:1.4.21.2~dfsg-3+lenny2.1.

For the stable distribution (squeeze), this problem has been fixed in
version 1:1.6.2.9-2+squeeze2.

For the unstable distribution (sid), this problem has been fixed in
version 1:1.8.3.3-1.

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