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Gentoo Linux Security Advisory GLSA 201710-17
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https://security.gentoo.org/
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Severity: High
Title: Xen: Multiple vulnerabilities
Date: October 18, 2017
Bugs: #624112, #624116, #624118, #624124, #624128
ID: 201710-17

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Synopsis
========

Multiple vulnerabilities have been found in Xen, the worst of which may
allow local attackers to escalate privileges.

Background
==========

Xen is a bare-metal hypervisor.

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

——————————————————————-
Package / Vulnerable / Unaffected
——————————————————————-
1 app-emulation/xen < 4.7.3 >= 4.7.3
2 app-emulation/xen-pvgrub
< 4.7.3 >= 4.7.3
3 app-emulation/xen-tools < 4.7.3 >= 4.7.3
——————————————————————-
3 affected packages

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

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

Impact
======

A local attacker could escalate privileges, cause a Denial of Service
condition, obtain sensitive information, or have other unspecified
impacts.

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-4.7.3”

All Xen pvgrub users should upgrade to the latest version:

# emerge –sync
# emerge –ask –oneshot –verbose “>=app-emulation/xen-pvgrub-4.7.3”

All Xen Tools users should upgrade to the latest version:

# emerge –sync
# emerge –ask –oneshot –verbose “>=app-emulation/xen-tools-4.7.3”

References
==========

[ 1 ] CVE-2017-10912
https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-10912
[ 2 ] CVE-2017-10913
https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-10913
[ 3 ] CVE-2017-10914
https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-10914
[ 4 ] CVE-2017-10915
https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-10915
[ 5 ] CVE-2017-10918
https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-10918
[ 6 ] CVE-2017-10920
https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-10920
[ 7 ] CVE-2017-10921
https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-10921
[ 8 ] CVE-2017-10922
https://nvd.nist.gov/nvd.cfm?cvename=CVE-2017-10922

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

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

https://security.gentoo.org/glsa/201710-17

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.

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