TI-2020-14200 Aliases CVE-2020-21890 GHSA-44hq-r6f6-m9g4

Buffer Overflow vulnerability in clj_media_size function in devices/gdevclj.c in Artifex…

HIGH 69CWE-787Published 2023-08-22 · Updated 2024-10-04

Key facts

Attack vector: Local
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Will not fix Red Hat: no fix planned

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-787 and the CVSS impact.

Summary

Buffer Overflow vulnerability in clj_media_size function in devices/gdevclj.c in Artifex Ghostscript 9.50 allows remote attackers to cause a denial of service or other unspecified impact(s) via opening of crafted PDF document.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00811 57th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Will not fix Red Hat: no fix planned

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:artifex:ghostscript:9.50:::::::*	9.50	Vulnerable	Artifex

cpe:2.3:a:artifex:ghostscript:9.50:*:*:*:*:*:*:* Versions 9.50 Vulnerable ·Artifex

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Red Hat Enterprise Linux 6	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 7	Affected	No fix planned: Out of support scope
Red Hat Enterprise Linux 8	Affected	No fix planned: Will not fix

Not affected: 2 products

Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9

Timeline

2026-10-02 Threatist record created from CVE-2020-21890
2026-10-03 Alias added: GHSA-44hq-r6f6-m9g4

References

Exploit 1

https://bugs.ghostscript.com/show_bug.cgi?id=701846

Other 1

[debian-lts-announce] 20230925 [SECURITY] [DLA 3582-1] ghostscript security update

TI-2017-05861 Artifex Ghostscript through 2017-04-26 allows -dSAFER bypass and remote command execution… KEVCVSS 3.1HIGH 7.8
TI-2021-02712 Improper input validation in ghostscript CVSS 3.1CRITICAL 9.9
TI-2023-13382 In Artifex Ghostscript through 10.01.0, there is a buffer overflow leading to potential… CVSS 3.1CRITICAL 9.8
TI-2018-11841 An issue was discovered in Artifex Ghostscript before 9.24. CVSS 3.0HIGH 7.8
TI-2024-19474 Artifex Ghostscript before 10.03.0 has a stack-based buffer overflow in the… CVSS 3.1HIGH 8.8
TI-2024-19479 Artifex Ghostscript before 10.03.1, when Tesseract is used for OCR, has a directory… CVSS 3.1HIGH 7.5

See all 128 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences