For Debian 7 Wheezy, these problems have been fixed in version
1:9.8.4.dfsg.P1-6+nmu2+deb7u11.
We recommend that you upgrade your bind9 packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: <https://wiki.debian.org/LTS>