Out-of-bounds read vulnerability in PHP's exif_process_TIFF_in_JPEG function

Out-of-bounds read vulnerability in PHP's exif_process_TIFF_in_JPEG function

CVE-2016-4544 · CRITICAL Severity

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

The exif_process_TIFF_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 TIFF start data, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via crafted header data.

Learn more about our Web Application Penetration Testing UK.