python: DoS via inefficiency in IPv{4,6}Interface classes

A vulnerability was found in the way the ipaddress python module computes hash values in the IPv4Interface and IPv6Interface classes. This flaw allows an attacker to create many dictionary entries, due to the performance of a dictionary containing the IPv4Interface or IPv6Interface objects,...

Fedora 16 : expat-2.1.0-1.fc16 (2012-5058)

This update includes expat 2.1.0, which fixes includes a fix for a security issue. A specially crafted set of keys could trigger hash function collisions, which degrade dictionary performance by changing hash table operations complexity from an expected/average O1 to the worst case On. Reporters...

Fedora 17 : expat-2.1.0-1.fc17 (2012-4936)

This update includes expat 2.1.0, which fixes includes a fix for a security issue. A specially crafted set of keys could trigger hash function collisions, which degrade dictionary performance by changing hash table operations complexity from an expected/average O1 to the worst case On. Reporters...