PHP Improper Restriction of Operations within the Bounds of a Memory Buffer Vulnerability - CVE-2016-4543
The exif_process_IFD_in_JPEG function in ext/exif/exif.c in PHP before 5.5.35 5.6.x before 5.6.21 and 7.x before 7.0.6 does not validate IFD sizes which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via crafted header data.