Vulnerability Monitor

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CVE-2016-4544

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.

Security Impact Summary

This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.8, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 5 products from php, from opensuse, from opensuse and 2 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2016, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2016-05-22T01:59:29.277

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

6.4

Weaknesses

Type: Primary
CWE-119

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	php	php	< 5.5.35	Yes
Application	php	php	< 5.6.21	Yes
Application	php	php	< 7.0.6	Yes
Operating System	opensuse	leap	42.1	Yes
Operating System	opensuse	opensuse	13.2	Yes
Operating System	fedoraproject	fedora	24	Yes
Operating System	debian	debian_linux	8.0	Yes

References

http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183736.html Mailing List, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.html Mailing List, Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-updates/2016-06/msg00027.html Mailing List, Third Party Advisory ([email protected])
http://php.net/ChangeLog-5.php Release Notes, Vendor Advisory ([email protected])
http://php.net/ChangeLog-7.php Release Notes, Vendor Advisory ([email protected])
http://rhn.redhat.com/errata/RHSA-2016-2750.html Third Party Advisory ([email protected])
http://www.debian.org/security/2016/dsa-3602 Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2016/05/05/21 Mailing List, Patch, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/89844 Third Party Advisory, VDB Entry ([email protected])
https://bugs.php.net/bug.php?id=72094 Exploit, Issue Tracking, Vendor Advisory ([email protected])
https://git.php.net/?p=php-src.git%3Ba=commit%3Bh=082aecfc3a753ad03be82cf14f03ac065723ec92 ([email protected])
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731 Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/201611-22 Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183736.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-updates/2016-06/msg00027.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://php.net/ChangeLog-5.php Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://php.net/ChangeLog-7.php Release Notes, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://rhn.redhat.com/errata/RHSA-2016-2750.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2016/dsa-3602 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2016/05/05/21 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/89844 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://bugs.php.net/bug.php?id=72094 Exploit, Issue Tracking, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.php.net/?p=php-src.git%3Ba=commit%3Bh=082aecfc3a753ad03be82cf14f03ac065723ec92 (af854a3a-2127-422b-91ae-364da2661108)
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/201611-22 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For php's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.