Mandriva Linux Security Advisory – Tavis Ormandy and Will Drewry discovered a flaw in Perl’s regular expression engine. Specially crafted input to a regular expression can cause Perl to improperly allocate memory, resulting in the possible execution of arbitrary code with the permissions of the user running Perl.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/60703/MDKSA-2007-207.txt
Source: https://packetstormsecurity.com/files/60703/Mandriva-Linux-Security-Advisory-2007.207.html