CVE-2015-5267

lib/moodlelib.php in Moodle through 2.6.11, 2.7.x before 2.7.10, 2.8.x
before 2.8.8, and 2.9.x before 2.9.2 relies on the PHP mt_rand function to
implement the random_string and complex_random_string functions, which
makes it easier for remote attackers to predict password-recovery tokens
via a brute-force approach.

Bugs

• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=799634&gt;