Bug 1380327 (CVE-2013-5653)

Summary:	CVE-2013-5653 ghostscript: getenv and filenameforall ignore -dSAFER
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	abhgupta, carnil, cbuissar, deekej, dmcphers, jialiu, jokerman, kseifried, lmeyer, mmccomas, tiwillia, twaugh, zdohnal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:	It was found that the ghostscript functions getenv and filenameforall did not honor the -dSAFER option, usually used when processing untrusted documents, leading to information disclosure. A specially crafted postscript document could read environment variable and list directory respectively, from the target.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-01-04 11:10:03 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1390299, 1390300, 1390301, 1390302, 1390486
Bug Blocks:	1380329

Description Adam Mariš 2016-09-29 10:03:47 UTC

It was found that getenv and filenameforall ignore -dSAFER possibly allowing filesystem enumeration.

Upstream bug:

http://bugs.ghostscript.com/show_bug.cgi?id=694724

Upstream patch:

http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=ab109aaeb3ddba59518b036fb288402a65cf7ce8

Reference:
http://seclists.org/oss-sec/2016/q3/651


Reproducer:

%!PS
(HOME) getenv { print (\n) print } { (variable not found\n) print } ifelse

Comment 5 Cedric Buissart 2016-11-01 08:42:05 UTC

Created ghostscript tracking bugs for this issue:

Affects: fedora-all [bug 1390486]

Comment 12 errata-xmlrpc 2017-01-04 10:10:07 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2017:0014 https://rhn.redhat.com/errata/RHSA-2017-0014.html

Comment 13 errata-xmlrpc 2017-01-04 10:11:17 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:0013 https://rhn.redhat.com/errata/RHSA-2017-0013.html