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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.51%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 6.51% probability · 94th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- php/php · opensuse/leap · opensuse/opensuse · fedoraproject/fedora · debian/debian linux
- Source
- security@debian.org
EPSS 6.5% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183736.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-06/msg00027.htmlMailing List, Third Party Advisory
- http://php.net/ChangeLog-5.phpRelease Notes, Vendor Advisory
- http://php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2750.htmlThird Party Advisory
- http://www.debian.org/security/2016/dsa-3602Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/05/05/21Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/89844Third Party Advisory, VDB Entry
- https://bugs.php.net/bug.php?id=72094Exploit, Issue Tracking, Vendor Advisory
- https://git.php.net/?p=php-src.git%3Ba=commit%3Bh=082aecfc3a753ad03be82cf14f03ac065723ec92
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731Third Party Advisory
- https://security.gentoo.org/glsa/201611-22Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183736.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-05/msg00086.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-06/msg00027.htmlMailing List, Third Party Advisory
- http://php.net/ChangeLog-5.phpRelease Notes, Vendor Advisory
- http://php.net/ChangeLog-7.phpRelease Notes, Vendor Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2750.htmlThird Party Advisory
- http://www.debian.org/security/2016/dsa-3602Third Party Advisory
- http://www.openwall.com/lists/oss-security/2016/05/05/21Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/bid/89844Third Party Advisory, VDB Entry
- https://bugs.php.net/bug.php?id=72094Exploit, Issue Tracking, Vendor Advisory
- https://git.php.net/?p=php-src.git%3Ba=commit%3Bh=082aecfc3a753ad03be82cf14f03ac065723ec92
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731Third Party Advisory
- https://security.gentoo.org/glsa/201611-22Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.