VMware Security Advisory – Updated ESXi and ESX 3.5 packages address critical security issues in opewsman, where two remote buffer overflows exist in the decoding of HTTP basic authentication headers.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/70120/VMSA-2008-0015.txt
Source: https://packetstormsecurity.com/files/70120/VMware-Security-Advisory-2008-0015.html