Bug 1334188 (CVE-2016-5239) - CVE-2016-5239 ImageMagick,GraphicsMagick: Gnuplot delegate vulnerability allowing command injection
Summary: CVE-2016-5239 ImageMagick,GraphicsMagick: Gnuplot delegate vulnerability allo...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2016-5239
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1341777 1341778 1341779 1341780
Blocks: 1333419 1334189
TreeView+ depends on / blocked
 
Reported: 2016-05-09 06:53 UTC by Adam Mariš
Modified: 2019-11-14 07:58 UTC (History)
6 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2019-06-08 02:51:20 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:1237 0 normal SHIPPED_LIVE Important: ImageMagick security update 2016-07-18 17:06:55 UTC

Description Adam Mariš 2016-05-09 06:53:22 UTC 
It was found that gnuplot delegate functionality in ImageMagick and GraphicsMagick allows system command injection while interpreting gnuplot files.

Upstream patch (ImageMagick):

http://git.imagemagick.org/repos/ImageMagick/commit/70a2cf326ed32bedee144b961005

Upstream patch (GraphicsMagick):

http://hg.code.sf.net/p/graphicsmagick/code/rev/45998a25992d
Comment 2 Adam Mariš 2016-05-23 14:08:15 UTC 
Public via:

http://www.openwall.com/lists/oss-security/2016/05/09/1
Comment 4 errata-xmlrpc 2016-06-16 22:48:02 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2016:1237 https://access.redhat.com/errata/RHSA-2016:1237
Comment 7 Stefan Cornelius 2016-08-11 11:03:04 UTC 
To clear things up a bit:

* gnuplot files should not be processed when coming from an untrusted source, as they can contain dangerous commands.
* ImageMagick does not care. If it detects a gnuplot file, it tries to delegate it to gnuplot.

If gnuplot is not installed or ImageMagick can't launch gnuplot, there should be no issue.

RHEL5 specific: The gnuplot delegation in RHEL5 is broken due to an unrelated issue. ImageMagick fails to launch gnuplot correctly, thus preventing this attack vector.
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