A security issue affects the following Ubuntu releases:
This advisory also applies to the corresponding versions of
Kubuntu, Edubuntu, and Xubuntu.
The problem can be corrected by upgrading your system to the
following package versions:
In general, a standard system update will make all the necessary changes.
It was discovered that Bind incorrectly handled IXFR transfers and dynamic
updates while under heavy load when used as an authoritative server. A
remote attacker could use this flaw to cause Bind to stop responding,
resulting in a denial of service.