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Artifex Ghostscript: (CVE-2018-19134) Setpattern operator type confusion

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Artifex Ghostscript: (CVE-2018-19134) Setpattern operator type confusion

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
12/20/2018
Created
03/19/2019
Added
01/15/2019
Modified
05/09/2019

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.

Solution(s)

  • ghostscript-upgrade-9_26

References

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