CVE-2018-18073

Publication date 15 October 2018

Last updated 25 August 2025

Ubuntu priority

Cvss 3 Severity Score

Description

Artifex Ghostscript allows attackers to bypass a sandbox protection mechanism by leveraging exposure of system operators in the saved execution stack in an error object.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
ghostscript	18.10 cosmic	Fixed 9.25~dfsg+1-0ubuntu1.1
	18.04 LTS bionic	Fixed 9.25~dfsg+1-0ubuntu0.18.04.2
	16.04 LTS xenial	Fixed 9.25~dfsg+1-0ubuntu0.16.04.2
	14.04 LTS trusty	Fixed 9.25~dfsg+1-0ubuntu0.14.04.2

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=34cc326eb2c5695833361887fe0b32e8d987741c

Severity score breakdown

Parameter	Value
Base score	6.3 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Changed
Confidentiality	High
Integrity impact	None
Availability impact	None
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

USN-3803-1
Ghostscript vulnerabilities
30 October 2018