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Incorrect Type Conversion or Cast Affecting ghostscript package, versions <9.26~dfsg+0-0ubuntu0.18.04.1

Severity

 Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.25% (66th percentile)

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  • Snyk IDSNYK-UBUNTU1804-GHOSTSCRIPT-381981
  • published7 Dec 2018
  • disclosed20 Dec 2018
Report a new vulnerability Found a mistake?

Introduced: 7 Dec 2018

CVE-2018-19134  (opens in a new tab)
CWE-704  (opens in a new tab)

How to fix?

Upgrade Ubuntu:18.04 ghostscript to version 9.26~dfsg+0-0ubuntu0.18.04.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ghostscript package and not the ghostscript package as distributed by Ubuntu. See How to fix? for Ubuntu:18.04 relevant fixed versions and status.

In Artifex Ghostscript through 9.25, the setpattern operator did not properly validate certain types. A specially crafted PostScript document could exploit this to crash Ghostscript or, possibly, execute arbitrary code in the context of the Ghostscript process. This is a type confusion issue because of failure to check whether the Implementation of a pattern dictionary was a structure type.