Debian Security Advisory
Debian GNU/Linux 6.0
Debian update for bind9
was discovered that BIND, a DNS server, hangs while constructing the additional section of a DNS reply, when certain combinations of resource records are present. This vulnerability affects both recursive and authoritative servers.
For the stable distribution (squeeze), this problem has been fixed in version 1:9.7.3.dfsg-1~squeeze8.
Debian has issued an update for bind9. This fixes a vulnerability, which can be exploited by malicious people to cause a DoS (Denial of Service).