Debian: DSA-2225-1 Critical: Asterisk Remote DoS Exploit

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 distributi...