Bug 1332505 (CVE-2016-3717) - CVE-2016-3717 ImageMagick: Local file read
Summary: CVE-2016-3717 ImageMagick: Local file read
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2016-3717
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1332634 1332638 1332639 1332640 1332641 1332695 1332930
Blocks: 1332507
TreeView+ depends on / blocked
 
Reported: 2016-05-03 11:04 UTC by Andrej Nemec
Modified: 2021-02-17 03:56 UTC (History)
14 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2016-06-02 12:59:31 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:0726 0 normal SHIPPED_LIVE Important: ImageMagick security update 2016-05-09 22:03:43 UTC

Description Andrej Nemec 2016-05-03 11:04:21 UTC 
A vulnerability was found in ImageMagick. It is possible to get content of the files from the server by using ImageMagick's 'label' pseudo protocol.
Comment 2 Stefan Cornelius 2016-05-03 15:20:01 UTC 
Mitigation:

Details can be found under the resolve tab at https://access.redhat.com/security/vulnerabilities/2296071

Red Hat Enterprise Linux 6 and 7
================================

As a workaround the /etc/ImageMagick/policy.xml file can be edited to disable processing of MVG, HTTPS, HTTP, URL, FTP, EPHEMERAL, MSL, LABEL, TEXT,
SHOW, WIN and PLT commands within image files, simply add the following lines:

<policy domain="coder" rights="none" pattern="EPHEMERAL" />
<policy domain="coder" rights="none" pattern="HTTPS" />
<policy domain="coder" rights="none" pattern="HTTP" />
<policy domain="coder" rights="none" pattern="URL" />
<policy domain="coder" rights="none" pattern="FTP" />
<policy domain="coder" rights="none" pattern="MVG" />
<policy domain="coder" rights="none" pattern="MSL" />
<policy domain="coder" rights="none" pattern="TEXT" />
<policy domain="coder" rights="none" pattern="LABEL" />
<policy domain="coder" rights="none" pattern="SHOW" />
<policy domain="coder" rights="none" pattern="WIN" />
<policy domain="coder" rights="none" pattern="PLT" />
<policy domain="path" rights="none" pattern="@*" />

within the policy map stanza:

<policymap>
...
</policymap>


Red Hat Enterprise Linux 5
==========================

In the following folders:
/usr/lib64/ImageMagick-6.2.8/modules-Q16/coders/ (64bit package)
or
/usr/lib/ImageMagick-6.2.8/modules-Q16/coders/ (32bit package)

Rename the following files:
* mvg.so to mvg.so.bak
* msl.so to msl.so.bak
* label.so to label.so.bak
Comment 3 Stefan Cornelius 2016-05-03 15:28:03 UTC 
Created ImageMagick tracking bugs for this issue:

Affects: fedora-all [bug 1332634]
Comment 4 Stefan Cornelius 2016-05-03 15:28:10 UTC 
Public via: https://www.imagemagick.org/discourse-server/viewtopic.php?f=4&t=29588#p132726
Comment 9 Peter Bex 2016-05-07 13:47:22 UTC 
Please note that the ImageMagick package does not mark the policy.xml file as a configuration file, which means any changes you make are dropped on an upgrade or reinstall!  See also [bug 1334045]
Comment 10 errata-xmlrpc 2016-05-09 18:04:30 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6
  Red Hat Enterprise Linux 7

Via RHSA-2016:0726 https://rhn.redhat.com/errata/RHSA-2016-0726.html
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