CVE-2020-36773

critical

Description

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).

References

https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/tag/gs9530

https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8c7bd787defa071c96289b7da9397f673fddb874

https://bugzilla.opensuse.org/show_bug.cgi?id=1177922

https://bugs.ghostscript.com/show_bug.cgi?id=702229

Details

Source: Mitre, NVD

Published: 2024-02-04

Updated: 2024-03-04

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H