CVE-2016-4544

critical
Published 2016-05-22 ยท Modified 2026-05-06
CVSS v3
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
9.8

Description

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.

Predictions

Exploit likelihood
97%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

debian Debian Affected 1 release
VersionStatusFixed in
8.0 Affected โ€”
fedora Fedora Affected 1 release
VersionStatusFixed in
24 Affected โ€”
suse SUSE Affected 3 releases
VersionStatusFixed in
42.1 Affected โ€”
13.2 Affected โ€”
โ€” Affected โ€”

Application impact

VendorProductVersionsFixed
php phpphp{"startIncluding":"5.5.0","endExcluding":"5.5.35"}5.5.35

References

CWEs

CWE-119

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.