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Gentoo Linux Security Advisory                           GLSA 201502-14
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                                            https://security.gentoo.org/
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 Severity: Normal
    Title: grep: Denial of Service
     Date: February 25, 2015
     Bugs: #537046
       ID: 201502-14

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Synopsis
=======
A vulnerability in grep could result in Denial of Service.

Background
=========
grep is the GNU regular expression matcher.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  sys-apps/grep               < 2.21-r1                 >= 2.21-r1

Description
==========
A heap buffer overrun has been fixed in the bmexec_trans function in
kwset.c.

Impact
=====
A local user can cause Denial of Service.

Workaround
=========
There is no known workaround at this time.

Resolution
=========
All grep users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=sys-apps/grep-2.21-r1"

References
=========
[ 1 ] CVE-2015-1345
      https://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-1345

Availability
===========
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

 https://security.gentoo.org/glsa/glsa-201502-14.xml

Concerns?
========
Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users' machines is of utmost
importance to us. Any security concerns should be addressed to
security@gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
======
Copyright 2015 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5

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