Mandriva Linux Security Update Advisory – Squid 2.5.9, while performing NTLM authentication, does not properly handle certain request sequences, which allows attackers to cause a denial of service (daemon restart).
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/40643/MDKSA-2005-181.txt
Source: https://packetstormsecurity.com/files/40643/Mandriva-Linux-Security-Advisory-2005.181.html