The GENERATE_SEED macro in PHP 4.x before 4.4.8 and 5.x before 5.2.5,
when running on 32-bit systems, performs a multiplication using values
that can produce a zero seed in rare circumstances, which allows
context-dependent attackers to predict subsequent values of the rand
and mt_rand functions and possibly bypass protection mechanisms that
rely on an unknown initial seed.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20080506 Advisory SE-2008-02: PHP GENERATE_SEED() Weak Random Number Seed Vulnerability
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