The exif_process_unicode function in ext/exif/exif.c in PHP before 5.4.37, 5.5.x before 5.5.21, and 5.6.x before 5.6.5 allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized pointer free and application crash) via crafted EXIF data in a JPEG image.
advisories.mageia.org/MGASA-2015-0040.html
git.php.net/?p=php-src.git%3Ba=commit%3Bh=21bc7464f454fec18a9ec024c738f195602fee2a
git.php.net/?p=php-src.git%3Ba=commit%3Bh=2fc178cf448d8e1b95d1314e47eeef610729e0df
git.php.net/?p=php-src.git%3Ba=commit%3Bh=55001de6d8c6ed2aada870a76de1e4b4558737bf
lists.apple.com/archives/security-announce/2015/Sep/msg00008.html
lists.opensuse.org/opensuse-security-announce/2015-02/msg00029.html
lists.opensuse.org/opensuse-updates/2015-02/msg00079.html
marc.info/?l=bugtraq&m=143748090628601&w=2
marc.info/?l=bugtraq&m=144050155601375&w=2
rhn.redhat.com/errata/RHSA-2015-1053.html
rhn.redhat.com/errata/RHSA-2015-1066.html
rhn.redhat.com/errata/RHSA-2015-1135.html
rhn.redhat.com/errata/RHSA-2015-1218.html
www.debian.org/security/2015/dsa-3195
www.mandriva.com/security/advisories?name=MDVSA-2015:032
www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
www.php.net/ChangeLog-5.php
www.securityfocus.com/bid/72541
bugs.php.net/bug.php?id=68799
bugzilla.redhat.com/show_bug.cgi?id=1185472
security.gentoo.org/glsa/201503-03
support.apple.com/HT205267