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CVE-2020-21890

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

7.8 HighFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.81%Up 0.7 points since Aug 23, 2023
90%50%10%1%

What each source reports

NVD Score used 7.8

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.

Record
CVE-2020-21890
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-787
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2020-21890
Updated
2026-11-02
EUVDEUVD-2020-14656 No score

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.

Record
EUVD-2020-14656
Updated
2026-11-03
GitHub AdvisoriesGHSA-44hq-r6f6-m9g4 7.8

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

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.

Record
GHSA-44hq-r6f6-m9g4
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-787
Updated
2026-11-02
OSV 7.8

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.

Record
CVE-2020-21890
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2020-21890 7.8

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.

Record
DEBIAN-CVE-2020-21890
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2020-21890 7.8

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.

Record
UBUNTU-CVE-2020-21890
CVSS 3.1
7.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUSN-6364-1 No score

ghostscript vulnerabilities

It was discovered that Ghostscript incorrectly handled certain PDF files. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-21710)

It was discovered that Ghostscript incorrectly handled certain PDF files. An attacker could possibly use this issue to cause a denial of service, or possibly execute arbitrary code. (CVE-2020-21890)

Record
USN-6364-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
ghostscript
Debian:12
 before 9.51~dfsg-1
9.51~dfsg-1
ghostscript
Debian:13
 before 9.51~dfsg-1
9.51~dfsg-1
ghostscript
Debian:14
 before 9.51~dfsg-1
9.51~dfsg-1
ghostscript
Debian:10
 before 9.27~dfsg-2+deb10u9, plus listed versions
9.27~dfsg-29.27~dfsg-2+deb10u19.27~dfsg-2+deb10u29.27~dfsg-2+deb10u39.27~dfsg-2+deb10u4
Show 4 moreShow less
9.27~dfsg-2+deb10u59.27~dfsg-2+deb10u69.27~dfsg-2+deb10u79.27~dfsg-2+deb10u8
9.27~dfsg-2+deb10u9
ghostscript
Ubuntu:Pro:16.04:LTS
 before 9.26~dfsg+0-0ubuntu0.16.04.14+esm7, plus listed versions
9.16~dfsg~0-0ubuntu39.16~dfsg~0-0ubuntu49.18~dfsg~0-0ubuntu19.18~dfsg~0-0ubuntu29.18~dfsg~0-0ubuntu2.2
Show 28 moreShow less
9.18~dfsg~0-0ubuntu2.39.18~dfsg~0-0ubuntu2.49.18~dfsg~0-0ubuntu2.69.18~dfsg~0-0ubuntu2.79.18~dfsg~0-0ubuntu2.89.18~dfsg~0-0ubuntu2.99.25~dfsg+1-0ubuntu0.16.04.19.25~dfsg+1-0ubuntu0.16.04.29.25~dfsg+1-0ubuntu0.16.04.39.26~dfsg+0-0ubuntu0.16.04.19.26~dfsg+0-0ubuntu0.16.04.39.26~dfsg+0-0ubuntu0.16.04.49.26~dfsg+0-0ubuntu0.16.04.59.26~dfsg+0-0ubuntu0.16.04.69.26~dfsg+0-0ubuntu0.16.04.79.26~dfsg+0-0ubuntu0.16.04.89.26~dfsg+0-0ubuntu0.16.04.99.26~dfsg+0-0ubuntu0.16.04.109.26~dfsg+0-0ubuntu0.16.04.119.26~dfsg+0-0ubuntu0.16.04.129.26~dfsg+0-0ubuntu0.16.04.139.26~dfsg+0-0ubuntu0.16.04.149.26~dfsg+0-0ubuntu0.16.04.14+esm19.26~dfsg+0-0ubuntu0.16.04.14+esm29.26~dfsg+0-0ubuntu0.16.04.14+esm39.26~dfsg+0-0ubuntu0.16.04.14+esm49.26~dfsg+0-0ubuntu0.16.04.14+esm59.26~dfsg+0-0ubuntu0.16.04.14+esm6
9.26~dfsg+0-0ubuntu0.16.04.14+esm7
ghostscript
Ubuntu:Pro:18.04:LTS
 before 9.26~dfsg+0-0ubuntu0.18.04.18+esm2, plus listed versions
9.21~dfsg+1-0ubuntu39.22~dfsg+1-0ubuntu19.22~dfsg+1-0ubuntu1.19.22~dfsg+1-0ubuntu1.29.25~dfsg+1-0ubuntu0.18.04.1
Show 19 moreShow less
9.25~dfsg+1-0ubuntu0.18.04.29.26~dfsg+0-0ubuntu0.18.04.19.26~dfsg+0-0ubuntu0.18.04.39.26~dfsg+0-0ubuntu0.18.04.49.26~dfsg+0-0ubuntu0.18.04.59.26~dfsg+0-0ubuntu0.18.04.69.26~dfsg+0-0ubuntu0.18.04.79.26~dfsg+0-0ubuntu0.18.04.89.26~dfsg+0-0ubuntu0.18.04.99.26~dfsg+0-0ubuntu0.18.04.109.26~dfsg+0-0ubuntu0.18.04.119.26~dfsg+0-0ubuntu0.18.04.129.26~dfsg+0-0ubuntu0.18.04.139.26~dfsg+0-0ubuntu0.18.04.149.26~dfsg+0-0ubuntu0.18.04.159.26~dfsg+0-0ubuntu0.18.04.169.26~dfsg+0-0ubuntu0.18.04.179.26~dfsg+0-0ubuntu0.18.04.189.26~dfsg+0-0ubuntu0.18.04.18+esm1
9.26~dfsg+0-0ubuntu0.18.04.18+esm2
ghostscript
Ubuntu:20.04:LTS
 before 9.50~dfsg-5ubuntu4.10, plus listed versions
9.27~dfsg+0-0ubuntu39.27~dfsg+0-0ubuntu49.50~dfsg-5ubuntu19.50~dfsg-5ubuntu29.50~dfsg-5ubuntu3
Show 10 moreShow less
9.50~dfsg-5ubuntu49.50~dfsg-5ubuntu4.19.50~dfsg-5ubuntu4.29.50~dfsg-5ubuntu4.39.50~dfsg-5ubuntu4.49.50~dfsg-5ubuntu4.59.50~dfsg-5ubuntu4.69.50~dfsg-5ubuntu4.79.50~dfsg-5ubuntu4.89.50~dfsg-5ubuntu4.9
9.50~dfsg-5ubuntu4.10

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2020-21890 is a high vulnerability (CVSS 7.8) in Artifex Ghostscript, published August 22, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.81%, the 56th percentile. Fixed in ghostscript 9.51~dfsg-1.

References

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