Integer overflow in the regcomp implementation in the Henry Spencer BSD regex library (aka rxspencer) alpha3.8.g5 on 32-bit platforms, as used in NetBSD through 6.1.5 and other products, might allow context-dependent attackers to execute arbitrary code via a large regular expression that leads to a heap-based buffer overflow.
https://support.apple.com/HT205267
http://www.ubuntu.com/usn/USN-2594-1
http://www.ubuntu.com/usn/USN-2572-1
http://www.securitytracker.com/id/1031947
http://www.securityfocus.com/bid/72611
http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
http://www.kb.cert.org/vuls/id/695940
http://www.debian.org/security/2015/dsa-3195
http://rhn.redhat.com/errata/RHSA-2015-1066.html
http://rhn.redhat.com/errata/RHSA-2015-1053.html
http://php.net/ChangeLog-5.php
http://openwall.com/lists/oss-security/2015/03/11/8
http://openwall.com/lists/oss-security/2015/02/07/14
http://marc.info/?l=bugtraq&m=143403519711434&w=2
http://lists.opensuse.org/opensuse-updates/2015-05/msg00024.html
http://lists.opensuse.org/opensuse-updates/2015-04/msg00002.html
http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00026.html
http://lists.opensuse.org/opensuse-security-announce/2015-05/msg00005.html
http://lists.apple.com/archives/security-announce/2015/Sep/msg00008.html
http://blog.clamav.net/2015/04/clamav-0987-has-been-released.html