CVE-2020-36773

Severity CVSS v4.0:

Pending analysis

Type:

CWE-416 Use After Free

Publication date:

04/02/2024

Last modified:

22/05/2025

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).

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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

Base Score 3.x

9.80

Severity 3.x

CRITICAL

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:artifex:ghostscript:9.51:::::::*
cpe:2.3:a:artifex:ghostscript:9.52:::::::*
cpe:2.3:a:artifex:ghostscript:9.52.1:::::::*
cpe:2.3:a:artifex:ghostscript:9.53.0:rc1::::::
cpe:2.3:a:artifex:ghostscript:9.53.0:rc2::::::

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:a:artifex:ghostscript:9.51:::::::*
cpe:2.3:a:artifex:ghostscript:9.52:::::::*
cpe:2.3:a:artifex:ghostscript:9.52.1:::::::*
cpe:2.3:a:artifex:ghostscript:9.53.0:rc1::::::
cpe:2.3:a:artifex:ghostscript:9.53.0:rc2::::::

CVE-2020-36773

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools