Comodo Firewall Pro (formerly Comodo Personal Firewall) 2.4.17.183 and earlier uses a weak cryptographic hashing function (CRC32) to identify trusted modules, which allows local users to bypass security protections by substituting modified modules that have the same CRC32 value.
lists.grok.org.uk/pipermail/full-disclosure/2007-February/052461.html
osvdb.org/45243
securityreason.com/securityalert/2279
www.matousec.com/info/advisories/Comodo-DLL-injection-via-weak-hash-function-exploitation.php
www.securityfocus.com/archive/1/460209/100/100/threaded
exchange.xforce.ibmcloud.com/vulnerabilities/32530