CVE-2018-19477

Publication date 23 November 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

psi/zfjbig2.c in Artifex Ghostscript before 9.26 allows remote attackers to bypass intended access restrictions because of a JBIG2Decode type confusion.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ghostscript	18.10 cosmic	Fixed 9.26~dfsg+0-0ubuntu0.18.10.1
	18.04 LTS bionic	Fixed 9.26~dfsg+0-0ubuntu0.18.04.1
	16.04 LTS xenial	Fixed 9.26~dfsg+0-0ubuntu0.16.04.1
	14.04 LTS trusty	Fixed 9.26~dfsg+0-0ubuntu0.14.04.1

Patch details

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

Package	Patch details
ghostscript	Upstream: http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=ef252e7dc214bcbd9a2539216aab9202848602bb Upstream: http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=606a22e77e7f081781e99e44644cd0119f559e03

Severity score breakdown

Parameter	Value
Base score	7.8 · High
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

USN-3831-1
Ghostscript vulnerabilities
29 November 2018