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
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- php/php
- Source
- cve@mitre.org
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. Refreshed daily.