CVE-2020-36773

moderate-risk
Published 2024-02-04

Artifex Ghostscript before 9.53.0 has an out-of-bounds write and use-after-free in devices/vector/gdevtxtw.c (for txtwrite) because a single character code in a PDF document can map to more than one Unicode code point (e.g., for a ligature).

Do I need to act?

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0.11% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (5)

Affected Vendors

Artifex

References (8)

Issue Tracking https://bugs.ghostscript.com/show_bug.cgi?id=702229
Issue Tracking https://bugzilla.opensuse.org/show_bug.cgi?id=1177922
Broken Link https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8c7bd787defa071c96289...
Release Notes https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/tag/gs9530
Issue Tracking https://bugs.ghostscript.com/show_bug.cgi?id=702229
Issue Tracking https://bugzilla.opensuse.org/show_bug.cgi?id=1177922
Broken Link https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8c7bd787defa071c96289...
Release Notes https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/tag/gs9530
44
/ 100
moderate-risk
Severity 32/34 · Critical
Exploitability 0/34 · Minimal
Exposure 12/34 · Low