Type Confusion Vulnerability in Artifex Ghostscript Product
CVE-2018-19134

7.8HIGH

Key Information:

Vendor

Artifex
Status
Ghostscript
Vendor
CVE Published:
20 December 2018

What is CVE-2018-19134?

A flaw exists in Artifex Ghostscript versions up to and including 9.25, where the setpattern operator fails to properly validate certain types. This weak validation allows attackers to craft specially formatted PostScript documents that can exploit the vulnerability, potentially leading to a crash of the Ghostscript process or executing arbitrary code within the context of this process. This issue highlights a type confusion vulnerability resulting from inadequate checks regarding the implementation type of a pattern dictionary.

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References

https://access.redhat.com/errata/RHSA-2018:3834
vendor-advisoryx_refsource_REDHAT
https://bugs.ghostscript.com/show_bug.cgi?id=700141
x_refsource_CONFIRM
http://git.ghostscript.com/?p=ghostpdl.git%3Ba=commitdiff...
x_refsource_CONFIRM

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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