Debian: DSA-2656-1 Critical: Bind9 DoS Risk Due To Malicious Queries

Matthew Horsfall of Dyn, Inc. discovered that BIND, a DNS server, is
prone to a denial of service vulnerability. A remote attacker could use
this flaw to send a specially-crafted DNS query to named that, when
processed, would cause named to use an excessive amount of memory, or
possibly crash.

For the stable distribution (squeeze), this problem has been fixed in
version 1:9.7.3.dfsg-1~squeeze10.

For the testing distribution (wheezy), this problem has been fixed in
version 1:9.8.4.dfsg.P1-6+nmu1.

For the unstable distribution (sid), this problem has been fixed in
version 1:9.8.4.dfsg.P1-6+nmu1.

We recommend that you upgrade your bind9 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/