Upstream developers have discovered several problems in squid, the Internet object cache, the popular WWW proxy cache. A remote attacker can cause squid to crash via certain DNS responses.
For the stable distribution (woody) these problems have been fixed in version 2.4.6-2woody7.
For the unstable distribution (sid) these problems have been fixed in version 2.5.8-3.
We recommend that you upgrade your squid package.