Bug 1427440 (CVE-2017-6196) - CVE-2017-6196 ghostscript: Multiple use-after-free vulnerabilities in gx_image_enum_begin function
Summary: CVE-2017-6196 ghostscript: Multiple use-after-free vulnerabilities in gx_imag...
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2017-6196
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1427442
Blocks: 1410024
TreeView+ depends on / blocked
 
Reported: 2017-02-28 08:58 UTC by Andrej Nemec
Modified: 2019-09-29 14:07 UTC (History)
6 users (show)

Fixed In Version:
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Last Closed: 2017-03-31 13:28:30 UTC
Embargoed:

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Description Andrej Nemec 2017-02-28 08:58:30 UTC 
Multiple use-after-free vulnerabilities in the gx_image_enum_begin function in base/gxipixel.c in Ghostscript  allow attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted PostScript document.

Upstream bug:

https://bugs.ghostscript.com/show_bug.cgi?id=697596

Upstream patch:

http://git.ghostscript.com/?p=ghostpdl.git;h=ecceafe3abba2714ef9b432035fe0739d9b1a283
Comment 1 Andrej Nemec 2017-02-28 08:59:36 UTC 
Created ghostscript tracking bugs for this issue:

Affects: fedora-all [bug 1427442]
Comment 2 Cedric Buissart 2017-03-31 13:00:43 UTC 
RHEL-7 and earlier versions are not affected : The double-free is a side effect of the upstream commit cffb5712b (http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=cffb5712b), which was introduced in ghostscript-9.21.
Comment 3 David Kaspar // Dee'Kej 2017-04-06 14:12:16 UTC 
(In reply to Cedric Buissart from comment #2)
> RHEL-7 and earlier versions are not affected : The double-free is a side
> effect of the upstream commit cffb5712b
> (http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=cffb5712b), which
> was introduced in ghostscript-9.21.

Please note that ghostscript-9.21 is already released, and I'm planning to do a rebase at some point when I have a time. Therefore I'm not sure we should close this BZ as a NOTABUG, because we might stumble upon this again in the future.
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