CVE-2016-7127

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

The imagegammacorrect function in ext/gd/gd.c in PHP before 5.6.25 and 7.x before 7.0.10 does not properly validate gamma values, which allows remote attackers to cause a denial of service (out-of-bounds write) or possibly have unspecified other impact by providing different signs for the second and third arguments.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-787

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

References

http://openwall.com/lists/oss-security/2016/09/02/9Mailing List
http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://www.php.net/ChangeLog-5.phpRelease Notes
http://www.php.net/ChangeLog-7.phpRelease Notes
http://www.securityfocus.com/bid/92757
http://www.securitytracker.com/id/1036680
https://bugs.php.net/bug.php?id=72730Exploit, Issue Tracking
https://github.com/php/php-src/commit/1bd103df00f49cf4d4ade2cfe3f456ac058a4eae?w=1Issue Tracking, Patch
https://security.gentoo.org/glsa/201611-22
https://www.tenable.com/security/tns-2016-19
http://openwall.com/lists/oss-security/2016/09/02/9Mailing List
http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://www.php.net/ChangeLog-5.phpRelease Notes
http://www.php.net/ChangeLog-7.phpRelease Notes
http://www.securityfocus.com/bid/92757
http://www.securitytracker.com/id/1036680
https://bugs.php.net/bug.php?id=72730Exploit, Issue Tracking
https://github.com/php/php-src/commit/1bd103df00f49cf4d4ade2cfe3f456ac058a4eae?w=1Issue Tracking, Patch
https://security.gentoo.org/glsa/201611-22
https://www.tenable.com/security/tns-2016-19

Timeline

Published: Sep 12, 2016
Last modified: Jun 17, 2026
NVD status: Modified

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