CVE-2020-36773

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).

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.09%
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugs.ghostscript.com/show_bug.cgi?id=702229 issue tracking patch
https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8c7bd787defa071c96289b7da9397f673fddb874 broken link
https://bugzilla.opensuse.org/show_bug.cgi?id=1177922 issue tracking
https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/tag/gs9530 release notes

Frequently Asked Questions

What is the severity of CVE-2020-36773?
CVE-2020-36773 has been scored as a critical severity vulnerability.
How to fix CVE-2020-36773?
To fix CVE-2020-36773, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-36773 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2020-36773 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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