CVE-2016-7126 Information
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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 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Reference
http://openwall.com/lists/oss-security/2016/09/02/9 [oss-security] 20160902 Re: CVE assignment for PHP 5.6.25 and 7.0.10 - and libcurl http://rhn.redhat.com/errata/RHSA-2016-2750.html http://www.php.net/ChangeLog-5.php http://www.php.net/ChangeLog-7.php http://www.securityfocus.com/bid/92755 http://www.securitytracker.com/id/1036680 https://bugs.php.net/bug.php?id=72697 https://github.com/php/php-src/commit/28022c9b1fd937436ab67bb3d61f652c108baf96 https://github.com/php/php-src/commit/b6f13a5ef9d6280cf984826a5de012a32c396cd4?w=1 https://security.gentoo.org/glsa/201611-22 https://www.tenable.com/security/tns-2016-19
Attack Complexity
LOW
Privileges Required
NONE
User Interaction Required
NONE
Scope
NONE
Confidentiality Impact
UNCHANGED
Integrity Impact
HIGH
Availability Impact
HIGH
Base Score
HIGH
Base Severity
9.8