CVE-2020-21890: artifex ghostscript Out-of-bounds Write
CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2020-21890DEBIAN-CVE-2020-21890
Published 22-08-2023Last modified 04-10-2024
Vulnerability summary
CVE-2020-21890 is a high (CVSS 7.8) Out-of-bounds Write vulnerability in artifex ghostscript. EPSS estimates a 0.81% chance of exploitation in the next 30 days, higher than 56.2% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.8/10
010
High · v3.1 (NVD)EPSS score
0.81%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference
Advisory lineage
Upstream 0 · Downstream 2 · Related 1Timeline
- 22-08-2023PublishedVulnerability first disclosed.
- 04-10-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
3 scores · 3 sources · 1 versionHigh 7.8Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.81%
Chance of exploitation in the next 30 days
Percentile
56%
Versus all other CVEs
30-day change
0.00 pp
From 0.81% on 20-09-2026
20-09-202620-10-2026
EPSS score0.81%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugs.ghostscript.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Artifex1 product
- ghostscript9.50
Debian1 product
- ghostscript< 9.51~dfsg-1
Ubuntu1 product
- ghostscript< 9.26~dfsg+0-0ubuntu0.16.04.14+esm7 | < 9.26~dfsg+0-0ubuntu0.18.04.18+esm2 | < 9.50~dfsg-5ubuntu4.10
3 vendors · 3 products
