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Bug 1446063 - (CVE-2017-8291) CVE-2017-8291 ghostscript: corruption of operand stack
CVE-2017-8291 ghostscript: corruption of operand stack
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
high Severity high
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Assigned To: Red Hat Product Security
impact=important,public=20170426,repo...
: Security
: 1445359 (view as bug list)
Depends On: 1446064 1447220 1447221 1447222 1447223
Blocks: 1445360 1446066
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Reported: 2017-04-27 04:03 EDT by Adam Mariš
Modified: 2018-08-27 09:45 EDT (History)
9 users (show)

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Doc Text:
It was found that ghostscript did not properly validate the parameters passed to the .rsdparams and .eqproc functions. During its execution, a specially crafted PostScript document could execute code in the context of the ghostscript process, bypassing the -dSAFER protection.
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Clone Of:
Environment:
Last Closed: 2017-05-12 07:51:35 EDT
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CRM:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:1230 normal SHIPPED_LIVE Important: ghostscript security update 2017-05-12 10:19:52 EDT

  None (edit)
Description Adam Mariš 2017-04-27 04:03:21 EDT 
It was reported that Artifex Ghostscript through 2017-04-26 allows -dSAFER bypass and remote command execution via a "/OutputFile (%pipe%" substring in a crafted .eps document that is an input to the gs program.

Upstream issue:

https://bugs.ghostscript.com/show_bug.cgi?id=697808
Comment 1 Adam Mariš 2017-04-27 04:03:53 EDT 
Created ghostscript tracking bugs for this issue:

Affects: fedora-all [bug 1446064]
Comment 3 Cedric Buissart 2017-04-28 08:46:45 EDT 
This is a duplicate of https://bugzilla.redhat.com/show_bug.cgi?id=1445359
Comment 4 Cedric Buissart 2017-04-28 10:51:43 EDT 
*** Bug 1445359 has been marked as a duplicate of this bug. ***
Comment 9 Cedric Buissart 2017-05-03 10:56:20 EDT 
Note:
The original patch has a regression in some rare conditions (when using the "DELAYBIND" feature). In such situation, the additional patch is required :
http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=57f20719
Comment 10 Cedric Buissart 2017-05-11 09:21:34 EDT 
It appears that the additional patch in comment 9 has its own regression.
Comment 11 Cedric Buissart 2017-05-11 09:52:43 EDT 
One more patch :
* Bug 697892: fix check for op stack underflow.
http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=ccfd2c75ac
Comment 12 errata-xmlrpc 2017-05-12 06:20:15 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2017:1230 https://access.redhat.com/errata/RHSA-2017:1230
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