CVE-2020-16303

Published: Aug 13, 2020Modified: Nov 21, 2024

7.8

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

A use-after-free vulnerability in xps_finish_image_path() in devices/vector/gdevxps.c of Artifex Software GhostScript v9.50 allows a remote attacker to escalate privileges via a crafted PDF file. This is fixed in v9.51.

Affected (6)

Products: Artifex: Ghostscript · Debian: Debian Linux · Canonical: Ubuntu Linux

1 product

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Artifex Ghostscript	Version 9.50

Configuration B

2 vulnerable

Vulnerable Software	Affected Versions
Debian Debian Linux	Version 10.0
Debian Debian Linux	Version 9.0

Configuration C

3 vulnerable

Vulnerable Software	Affected Versions
Canonical Ubuntu Linux	Version 16.04
Canonical Ubuntu Linux	Version 18.04
Canonical Ubuntu Linux	Version 20.04

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (12)

https://bugs.ghostscript.com/show_bug.cgi?id=701818

Source: cve@mitre.org

ExploitIssue TrackingVendor Advisory

https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=94d8955cb77

Source: cve@mitre.org

https://lists.debian.org/debian-lts-announce/2020/08/msg00032.html

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://security.gentoo.org/glsa/202008-20

Source: cve@mitre.org

Third Party Advisory

https://usn.ubuntu.com/4469-1/

Source: cve@mitre.org

Third Party Advisory

https://www.debian.org/security/2020/dsa-4748

Source: cve@mitre.org

Third Party Advisory

https://bugs.ghostscript.com/show_bug.cgi?id=701818