Bug 1062356 - (CVE-2014-1874) CVE-2014-1874 Kernel: SELinux: local denial-of-service
CVE-2014-1874 Kernel: SELinux: local denial-of-service
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
low Severity low
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Assigned To: Red Hat Product Security
: Security
Depends On: 1062502 1062503 1062504 1062505 1062506 1062507 1064545 1064548
Blocks: 1062124
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Reported: 2014-02-06 12:39 EST by Prasad J Pandit
Modified: 2015-10-17 09:53 EDT (History)
30 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2014-06-23 02:50:35 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Prasad J Pandit 2014-02-06 12:39:07 EST
Linux kernel built with the NSA SELinux Support(CONFIG_SECURITY_SELINUX) is
vulnerable to a crash caused by an empty SELinux security context value. If a
file has an empty security context, listing it via 'ls(1)' could trigger this
crash. Only user/processes with CAP_MAC_ADMIN privileges are allowed to set
the SELinux security context of a file.

A user/process with CAP_MAC_ADMIN privileges could use this flaw to crash the
kernel, resulting in a DoS.

Upstream fix:
  -> http://marc.info/?l=selinux&m=139110025203759&w=2
Comment 1 Prasad J Pandit 2014-02-06 12:48:52 EST

This issue does not affect the version of the kernel package as shipped with Red Hat Enterprise Linux 5.
Comment 2 Murray McAllister 2014-02-07 01:02:16 EST
This issue was assigned CVE-2014-1874: http://seclists.org/oss-sec/2014/q1/273
Comment 5 Prasad J Pandit 2014-02-07 01:16:21 EST
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1062507]
Comment 6 John Kacur 2014-02-11 02:44:07 EST
commit 2172fa709ab32ca60e86179dc67d0857be8e2c98 upstream
Comment 7 Fedora Update System 2014-02-17 16:05:37 EST
kernel-3.13.3-201.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 8 errata-xmlrpc 2014-04-28 12:55:45 EDT
This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2014:0439 https://rhn.redhat.com/errata/RHSA-2014-0439.html
Comment 9 errata-xmlrpc 2014-06-19 13:52:51 EDT
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2014:0771 https://rhn.redhat.com/errata/RHSA-2014-0771.html

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