CVE-2016-7568 Information

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Description

Integer overflow in the gdImageWebpCtx function in gd_webp.c in the GD Graphics Library (aka libgd) through 2.2.3 as used in PHP through 7.0.11 allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via crafted imagewebp and imagedestroy calls.

CVSS Vector

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

Reference

http://www.debian.org/security/2016/dsa-3693 http://www.securityfocus.com/bid/93184 https://bugs.php.net/bug.php?id=73003 https://github.com/libgd/libgd/commit/40bec0f38f50e8510f5bb71a82f516d46facde03 https://github.com/libgd/libgd/issues/308 https://github.com/php/php-src/commit/c18263e0e0769faee96a5d0ee04b750c442783c6 https://security.gentoo.org/glsa/201612-09

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