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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (8.82%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- 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
- 8.82% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- php/php
- Source
- cve@mitre.org
EPSS 8.8% since 27 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://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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.