CVE-2018-19134

high

Description

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.

References

https://www.ghostscript.com/doc/9.26/News.htm

https://lists.debian.org/debian-lts-announce/2018/12/msg00019.html

https://bugs.ghostscript.com/show_bug.cgi?id=700141

https://access.redhat.com/errata/RHSA-2018:3834

http://www.securityfocus.com/bid/106278

http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff%3Bh=693baf02152119af6e6afd30bb8ec76d14f84bbf

Details

Source: Mitre, NVD

Published: 2018-12-20

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Severity: High