- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory                           GLSA 201709-24
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                                           https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

 Severity: Normal
    Title: RAR, UnRAR: Multiple vulnerabilities
     Date: September 25, 2017
     Bugs: #622342, #628182, #628184
       ID: 201709-24

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
=======
Multiple vulnerabilities have been found in RAR and UnRAR, the worst of
which may allow attackers to execute arbitrary code.

Background
=========
RAR and UnRAR provide command line interfaces for compressing and
decompressing RAR files.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-arch/rar            < 5.5.0_p20170811     >= 5.5.0_p20170811 
  2  app-arch/unrar               < 5.5.7                    >= 5.5.7 
    -------------------------------------------------------------------
     2 affected packages

Description
==========
Multiple vulnerabilities have been discovered in RAR and UnRAR. Please
review the referenced CVE identifiers for details.

Impact
=====
A remote attacker, by enticing a user to open a specially crafted RAR,
could possibly execute arbitrary code with the privileges of the
process or cause a Denial of Service condition.

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

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

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-arch/rar-5.5.0_p20170811"

All UnRAR users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-arch/unrar-5.5.7"

References
=========
[ 1 ] CVE-2012-6706
      http://nvd.nist.gov/nvd.cfm?cvename=CVE-2012-6706
[ 2 ] CVE-2017-12940
      https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-12940
[ 3 ] CVE-2017-12941
      https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-12941
[ 4 ] CVE-2017-12942
      https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-12942

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

 https://security.gentoo.org/glsa/201709-24

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 2017 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/