CVE-2020-21710

Publication date 22 August 2023

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A divide by zero issue discovered in eps_print_page in gdevepsn.c in Artifex Software GhostScript 9.50 allows remote attackers to cause a denial of service via opening of crafted PDF file.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ghostscript	23.10 mantic	Not affected
	23.04 lunar	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Fixed 9.50~dfsg-5ubuntu4.10
	18.04 LTS bionic	Fixed 9.26~dfsg+0-0ubuntu0.18.04.18+esm2
	16.04 LTS xenial	Fixed 9.26~dfsg+0-0ubuntu0.16.04.14+esm7
	14.04 LTS trusty	Ignored end of standard support

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
ghostscript	Upstream: https://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=f70ab2044429fe4b991801476ea3f4b4a5c0cdf4 Upstream: https://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=4e713293de84b689c4ab358f3e110ea54aa81925

Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H