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CVE-2020-36773

Good to know:

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Date: February 4, 2024

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).

Language: C

Severity Score

Related Resources (7)

https://bugzilla.opensuse.org/show_bug.cgi?id=1177922
https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/tag/gs9530
https://git.ghostscript.com/?p=ghostpdl.git%3Ba=commit%3Bh=8c7bd787defa071c96289b7da9397f673fddb874
https://security-tracker.debian.org/tracker/CVE-2020-36773
https://bugs.ghostscript.com/show_bug.cgi?id=702229
https://nvd.nist.gov/vuln/detail/CVE-2020-36773
https://www.mend.io/vulnerability-database/CVE-2020-36773

Severity Score

Weakness Type (CWE)

Out-of-bounds Write

CWE-787

Use After Free

CWE-416

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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