PT-2019-6413 · Artifex+3 · Artifex Ghostscript+3

Suhwan · Published 2019-11-05 · Updated 2023-09-25 · CVE-2020-21890

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Artifex Ghostscript version 9.50

Description The issue is related to a Buffer Overflow vulnerability in the clj media size function in the devices/gdevclj.c component. This vulnerability can be exploited by remote attackers via the opening of a crafted PDF document, potentially leading to a denial of service or other unspecified impacts. It may also allow attackers to access confidential data, compromise data integrity, and cause service disruption.

Recommendations For Artifex Ghostscript version 9.50, consider disabling the clj media size function as a temporary workaround until a patch is available. Restrict access to crafted PDF documents to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

BDU:2023-09075

CVE-2020-21890

DLA-3582-1

USN-6364-1

Affected Products

Artifex Ghostscript

Astra Linux

Linuxmint

Ubuntu

References · 24

• 🔥 https://bugs.ghostscript.com/show_bug.cgi?id=701846 · Exploit
• https://security-tracker.debian.org/tracker/CVE-2020-21890 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-21890 · Security Note
• https://ubuntu.com/security/notices/USN-6364-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-21890 · Vendor Advisory
• https://bdu.fstec.ru/vul/2023-09075 · Security Note
• https://osv.dev/vulnerability/DLA-3582-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2024-0830SE17 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-21890 · Security Note
• https://ubuntu.com/security/CVE-2020-21710 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se16-bulletin-20231214SE16 · Vendor Advisory
• https://osv.dev/vulnerability/USN-6364-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-21890 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-21890 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-21890 · Vendor Advisory