Bug 1585914 – CVE-2018-11645 ghostscript: status command permitted with -dSAFER in psi/zfile.c allowing attackers to identify the size and existence of files

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Bug 1585914 - (CVE-2018-11645) CVE-2018-11645 ghostscript: status command permitted with -dSAFER in psi/zfile.c allowing attackers to identify the size and existence of files

Summary:	CVE-2018-11645 ghostscript: status command permitted with -dSAFER in psi/zfil...

Status:	NEW

Aliases:	CVE-2018-11645

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

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
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URL:
Whiteboard:	impact=low,public=20161005,reported=2...
Keywords:	Security

Depends On:	1588586
Blocks:	1585915
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Reported:	2018-06-05 01:42 EDT by Sam Fowler
Modified:	2018-10-31 21:31 EDT (History)
CC List:	4 users (show)

See Also:
Fixed In Version:	ghostcript 9.21
Doc Type:	If docs needed, set a value
Doc Text:	Ghostscript did not honor the -dSAFER option when executing the "status" instruction, which can be used to retrieve information such as a file's existence and size. A specially crafted postscript document could use this flow to gain information on the targeted system's filesystem content.
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Description Sam Fowler 2018-06-05 01:42:20 EDT

Ghostscript before 9.21rc1 permits the status command even if -dSAFER is used, which can allow remote attackers to determine the existence and size of arbitrary files.


Upstream bug:

https://bugs.ghostscript.com/show_bug.cgi?id=697193


Upstream patch:

http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=b60d50b7567369ad856cebe1efb6cd7dd2284219

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