PT-2020-5547 · Artifex+7 · Ghostscript+7

Suhwan · Published 2020-08-13 · Updated 2022-08-24 · CVE-2020-16295

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Ghostscript versions prior to 9.51

Description The issue is related to a null pointer dereference vulnerability in the clj media size() function, located in devices/gdevclj.c, which can be exploited by a remote attacker to cause a denial of service. This can be achieved via a crafted PDF file.

Recommendations For Ghostscript versions prior to 9.51, update to version 9.51 or later to resolve the issue. As a temporary workaround, consider restricting the use of crafted PDF files to minimize the risk of exploitation.

Exploit

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

ALSA-2021:1852

ALT-PU-2020-3124

BDU:2021-01146

CESA-2021_1852

CVE-2020-16295

DLA-2335-1

DSA-4748-1

MGASA-2020-0344

RHSA-2021:1852

RHSA-2021_1852

RLSA-2021:1852

USN-4469-1

Affected Products

Alt Linux

Almalinux

Centos

Ghostscript

Linuxmint

Red Hat

Rocky Linux

Ubuntu

References · 114

• 🔥 https://bugs.ghostscript.com/show_bug.cgi?id=701796 · Exploit
• https://ubuntu.com/security/CVE-2020-16295 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-16288 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-4469-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-16298 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-01146 · Security Note
• https://osv.dev/vulnerability/ALSA-2021:1852 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2021-1852.html · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-16295 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-16295 · Vendor Advisory
• https://debian.org/lts/security/2020/dla-2335 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-16297 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2020-0344 · Vendor Advisory
• https://usn.ubuntu.com/4469-1 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-2335-1 · Vendor Advisory