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CVE-2020-21890

HIGH
7.8
CVSS Score
Published: August 22, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 03:03 AM UTC
1 product affected across 1 vendorGhostscript

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Severity
HIGH7.8
Exploit prediction
EPSS 0.8%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

ExploitIssue TrackingPatchVendor Advisory
Source: [email protected]
https://bugs.ghostscript.com/show_bug.cgi?id=701846
Mailing List
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2023/09/msg00029.html

SSVC — Action Prioritization

SSVCPoCNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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