Bug 1626193 – CVE-2018-16585 ghostscript: .setdistillerkeys PostScript command is accepted even though it is not intended for use

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Bug 1626193 - (CVE-2018-16585) CVE-2018-16585 ghostscript: .setdistillerkeys PostScript command is accepted even though it is not intended for use

Summary:	CVE-2018-16585 ghostscript: .setdistillerkeys PostScript command is accepted ...

Status:	NEW

Aliases:	CVE-2018-16585

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
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Assigned To:	Red Hat Product Security
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Whiteboard:	impact=low,public=20180906,reported=2...
Keywords:	Security

Depends On:	1626195 1626194
Blocks:	1619570 1626196
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Reported:	2018-09-06 13:34 EDT by Pedro Sampaio
Modified:	2018-10-31 21:32 EDT (History)
CC List:	2 users (show)

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Description Pedro Sampaio 2018-09-06 13:34:31 EDT

An issue was discovered in Artifex Ghostscript before 9.24. The .setdistillerkeys PostScript command is accepted even though it is not intended for use during document processing (e.g., after the startup phase). This leads to memory corruption, allowing remote attackers able to supply crafted PostScript to crash the interpreter or possibly have unspecified other impact.

References:

http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=1497d65039885a52b598b137dd8622bd4672f9be
http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=971472c83a345a16dac9f90f91258bb22dd77f22
https://seclists.org/oss-sec/2018/q3/182

Comment 1 Pedro Sampaio 2018-09-06 13:35:03 EDT

Created ghostscript tracking bugs for this issue:

Affects: fedora-all [bug 1626194]

Comment 3 David Kaspar [Dee'Kej] 2018-09-07 05:23:32 EDT

So, looking at the commits... The issue was discovered prior to 9.24, which means that for 9.24 (F28+) it is already fixed.

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