CVE-2013-7422
Integer underflow in regcomp.c in Perl before 5.20, as used in Apple OS X before 10.10.5 and other products, allows context-dependent attackers to execute arbitrary code or cause a denial of service (application crash) via a long digit string associated with an invalid backreference within a regular expression.
Date published : 2015-08-16
http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html