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.
http://www.debian.org/security/2017/dsa-3777
http://www.securityfocus.com/bid/95843
https://github.com/libgd/libgd/blob/gd-2.2.4/CHANGELOG.md
https://github.com/libgd/libgd/commit/a49feeae76d41959d85ee733925a4cf40bac61b2
Source: MITRE
Published: 2017-01-26
Updated: 2017-11-04
Type: CWE-415
Base Score: 7.5
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 10
Severity: HIGH
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 3.9
Severity: CRITICAL