CVE-2016-7568

critical

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.

References

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

http://www.debian.org/security/2016/dsa-3693

Details

Source: Mitre, NVD

Published: 2016-09-28

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

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

Severity: Critical