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Gentoo Linux Security Advisory                           GLSA 201801-14
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                                           https://security.gentoo.org/
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 Severity: High
    Title: Xen: Multiple vulnerabilities
     Date: January 14, 2018
     Bugs: #627962, #634668, #637540, #637542, #639688, #641566
       ID: 201801-14

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Synopsis
========

Multiple vulnerabilities have been found in Xen, the worst of which
could allow for privilege escalation.

Background
==========

Xen is a bare-metal hypervisor.

Affected packages
=================

    -------------------------------------------------------------------
     Package              /     Vulnerable     /            Unaffected
    -------------------------------------------------------------------
  1  app-emulation/xen           < 4.9.1-r1               >= 4.9.1-r1
  2  app-emulation/xen-tools     < 4.9.1-r1               >= 4.9.1-r1
    -------------------------------------------------------------------
     2 affected packages

Description
===========

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

Impact
======

A local attacker could potentially execute arbitrary code with the
privileges of the Xen (QEMU) process on the host, gain privileges on
the host system, or cause a Denial of Service condition.

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-4.9.1-r1"

All Xen tools users should upgrade to the latest version:

  # emerge --sync
  # emerge --ask --oneshot -v ">=app-emulation/xen-tools-4.9.1-r1"

References
==========

[  1 ] CVE-2017-12134
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-12134
[  2 ] CVE-2017-12135
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-12135
[  3 ] CVE-2017-12136
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-12136
[  4 ] CVE-2017-12137
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-12137
[  5 ] CVE-2017-15588
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-15588
[  6 ] CVE-2017-15589
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-15589
[  7 ] CVE-2017-15590
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-15590
[  8 ] CVE-2017-15591
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-15591
[  9 ] CVE-2017-15592
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-15592
[ 10 ] CVE-2017-15593
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-15593
[ 11 ] CVE-2017-15594
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-15594
[ 12 ] CVE-2017-15595
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-15595
[ 13 ] CVE-2017-17044
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-17044
[ 14 ] CVE-2017-17045
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-17045
[ 15 ] CVE-2017-17046
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-17046
[ 16 ] CVE-2017-17563
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-17563
[ 17 ] CVE-2017-17564
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-17564
[ 18 ] CVE-2017-17565
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-17565
[ 19 ] CVE-2017-17566
       https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-17566

Availability
============

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

 https://security.gentoo.org/glsa/201801-14

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 2018 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.

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


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