CVE Vulnerabilities

CVE-2016-6912

Double Free

Published: Jan 26, 2017 | Modified: Nov 04, 2017
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
8.1 MODERATE
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM

Double free vulnerability in the gdImageWebPtr function in the GD Graphics Library (aka libgd) before 2.2.4 allows remote attackers to have unspecified impact via large width and height values.

Weakness

The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.

Affected Software

Name Vendor Start Version End Version
Libgd Libgd * 2.2.3 (including)
Libgd2 Ubuntu trusty *
Libgd2 Ubuntu upstream *
Libgd2 Ubuntu xenial *
Libgd2 Ubuntu yakkety *

Potential Mitigations

References