CVE-2016-7126

The imagetruecolortopalette function in ext/gd/gd.c in PHP before 5.6.25 and 7.x before 7.0.10 does not properly validate the number of colors, which allows remote attackers to cause a denial of service (select_colors allocation error and out-of-bounds write) or possibly have unspecified other impact via a large value in the third argument.

• CWE-787

• http://openwall.com/lists/oss-security/2016/09/02/9Mailing List
• http://rhn.redhat.com/errata/RHSA-2016-2750.htmlThird Party Advisory
• http://www.php.net/ChangeLog-5.phpRelease Notes
• http://www.php.net/ChangeLog-7.phpRelease Notes
• http://www.securityfocus.com/bid/92755Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1036680Third Party Advisory, VDB Entry
• https://bugs.php.net/bug.php?id=72697Exploit, Issue Tracking
• https://github.com/php/php-src/commit/28022c9b1fd937436ab67bb3d61f652c108baf96Patch, Vendor Advisory
• https://github.com/php/php-src/commit/b6f13a5ef9d6280cf984826a5de012a32c396cd4?w=1Issue Tracking, Patch
• https://security.gentoo.org/glsa/201611-22Third Party Advisory
• https://www.tenable.com/security/tns-2016-19Third Party Advisory
• http://openwall.com/lists/oss-security/2016/09/02/9Mailing List
• http://rhn.redhat.com/errata/RHSA-2016-2750.htmlThird Party Advisory
• http://www.php.net/ChangeLog-5.phpRelease Notes
• http://www.php.net/ChangeLog-7.phpRelease Notes
• http://www.securityfocus.com/bid/92755Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1036680Third Party Advisory, VDB Entry
• https://bugs.php.net/bug.php?id=72697Exploit, Issue Tracking
• https://github.com/php/php-src/commit/28022c9b1fd937436ab67bb3d61f652c108baf96Patch, Vendor Advisory
• https://github.com/php/php-src/commit/b6f13a5ef9d6280cf984826a5de012a32c396cd4?w=1Issue Tracking, Patch
• https://security.gentoo.org/glsa/201611-22Third Party Advisory
• https://www.tenable.com/security/tns-2016-19Third Party Advisory

Published

Sep 12, 2016

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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