Bug 1062356 (CVE-2014-1874) - CVE-2014-1874 Kernel: SELinux: local denial-of-service
Summary: CVE-2014-1874 Kernel: SELinux: local denial-of-service
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2014-1874
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: impact=low,public=20140129,reported=2...
Depends On: 1062502 1062503 1062504 1062505 1062506 1062507 1064545 1064548
Blocks: 1062124
TreeView+ depends on / blocked
 
Reported: 2014-02-06 17:39 UTC by Prasad J Pandit
Modified: 2019-06-08 19:54 UTC (History)
30 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-06-23 06:50:35 UTC


Attachments (Terms of Use)


Links
System ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2014:0439 normal SHIPPED_LIVE Important: kernel-rt security, bug fix, and enhancement update 2014-04-28 20:43:50 UTC
Red Hat Product Errata RHSA-2014:0771 normal SHIPPED_LIVE Important: kernel security and bug fix update 2014-06-19 21:52:21 UTC

Description Prasad J Pandit 2014-02-06 17:39:07 UTC
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 17:48:52 UTC
Statement:

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 06:02:16 UTC
This issue was assigned CVE-2014-1874: http://seclists.org/oss-sec/2014/q1/273

Comment 5 Prasad J Pandit 2014-02-07 06:16:21 UTC
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1062507]

Comment 6 John Kacur 2014-02-11 07:44:07 UTC
commit 2172fa709ab32ca60e86179dc67d0857be8e2c98 upstream

Comment 7 Fedora Update System 2014-02-17 21:05:37 UTC
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 16:55:45 UTC
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 17:52:51 UTC
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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