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CVE-2020-16293

Published: 13 August 2020

A null pointer dereference vulnerability in compose_group_nonknockout_nonblend_isolated_allmask_common() in base/gxblend.c of Artifex Software GhostScript v9.50 allows a remote attacker to cause a denial of service via a crafted PDF file. This is fixed in v9.51.

Priority

Medium

Cvss 3 Severity Score

5.5

Score breakdown

Status

Package Release Status
ghostscript
Launchpad, Ubuntu, Debian
bionic
Released (9.26~dfsg+0-0ubuntu0.18.04.13)
focal
Released (9.50~dfsg-5ubuntu4.2)
trusty Does not exist

upstream
Released (9.51~dfsg-1)
xenial Not vulnerable
(code not present)
Patches:
upstream: https://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=7870f4951bcc6a153f317e3439e14d0e929fd231

Severity score breakdown

Parameter Value
Base score 5.5
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