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Gentoo Linux Security Advisory                           GLSA 201612-56
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                                           https://security.gentoo.org/
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 Severity: Normal
    Title: Xen: Multiple vulnerabilities
     Date: December 31, 2016
     Bugs: #600382, #600662, #601248, #601250, #601986
       ID: 201612-56

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Synopsis
=======
Multiple vulnerabilities have been found in Xen, the worst of which
could lead to the execution of arbitrary code on the host system.

Background
=========
Xen is a bare-metal hypervisor.

Affected packages
================
    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-emulation/xen           < 4.7.1-r4               >= 4.7.1-r4
  2  app-emulation/xen-tools     < 4.7.1-r4               >= 4.7.1-r4
  3  app-emulation/xen-pvgrub
                                 < 4.7.1-r1               >= 4.7.1-r1
    -------------------------------------------------------------------
     3 affected packages

Description
==========
Multiple vulnerabilities have been discovered in Xen. Please review the
CVE identifiers referenced below for details.

Impact
=====
A local attacker could possibly execute arbitrary code with the
privileges of the process, could gain privileges on the host system,
cause a Denial of Service condition, or obtain sensitive information.

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

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

  # emerge --sync
  # emerge --ask --oneshot --verbose ">=app-emulation/xen-4.7.1-r4"

All Xen Tools users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot -v ">=app-emulation/xen-tools-4.7.1-r4"

All Xen PvGrub users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot -v ">=app-emulation/xen-pvgrub-4.7.1-r1"

References
=========
[  1 ] CVE-2016-10024
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-10024
[  2 ] CVE-2016-9377
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9377
[  3 ] CVE-2016-9378
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9378
[  4 ] CVE-2016-9379
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9379
[  5 ] CVE-2016-9380
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9380
[  6 ] CVE-2016-9381
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9381
[  7 ] CVE-2016-9382
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9382
[  8 ] CVE-2016-9383
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9383
[  9 ] CVE-2016-9384
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9384
[ 10 ] CVE-2016-9385
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9385
[ 11 ] CVE-2016-9386
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9386
[ 12 ] CVE-2016-9637
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9637
[ 13 ] CVE-2016-9815
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9815
[ 14 ] CVE-2016-9816
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9816
[ 15 ] CVE-2016-9817
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9817
[ 16 ] CVE-2016-9818
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9818
[ 17 ] CVE-2016-9932
       http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-9932

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

 https://security.gentoo.org/glsa/201612-56

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 2016 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/