Debian: DSA-2272-1 Moderate: BIND Denial of Service Risk

It was discovered that BIND, a DNS server, does not correctly process
certain UPDATE requests, resulting in a server crash and a denial of
service. This vulnerability affects BIND installations even if they
do not actually use dynamic DNS updates.

For the oldstable distribution (lenny), this problem has been fixed in
version 1:9.6.ESV.R4+dfsg-0+lenny3.

For the stable distribution (squeeze), this problem has been fixed in
version 1:9.7.3.dfsg-1~squeeze3.

The testing distribution (wheezy) and the unstable distribution (sid)
will be fixed later.

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/