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[gentoo-announce] [ GLSA 201309-24 ] Xen: Multiple vulnerabilities


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Posted 27 September 2013 - 10:49 PM

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Gentoo Linux Security Advisory GLSA 201309-24
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http://security.gentoo.org/
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Severity: High
Title: Xen: Multiple vulnerabilities
Date: September 27, 2013
Bugs: #385319, #386371, #420875, #431156, #454314, #464724,
#472214, #482860
ID: 201309-24

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Synopsis
========

Multiple vulnerabilities have been found in Xen, allowing attackers on
a Xen Virtual Machine to execute arbitrary code, cause Denial of
Service, or gain access to data on the host.

Background
==========

Xen is a bare-metal hypervisor.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-emulation/xen < 4.2.2-r1 >= 4.2.2-r1
2 app-emulation/xen-tools < 4.2.2-r3 >= 4.2.2-r3
3 app-emulation/xen-pvgrub
< 4.2.2-r1 >= 4.2.2-r1
-------------------------------------------------------------------
3 affected packages

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

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

Impact
======

Guest domains could possibly gain privileges, execute arbitrary code,
or cause a Denial of Service on the host domain (Dom0). Additionally,
guest domains could gain information about other virtual machines
running on the same host or read arbitrary files on the host.

Workaround
==========

The CVEs listed below do not currently have fixes, but only apply to
Xen setups which have "tmem" specified on the hypervisor command line.
TMEM is not currently supported for use in production systems, and
administrators using tmem should disable it.
Relevant CVEs:
* CVE-2012-2497
* CVE-2012-6030
* CVE-2012-6031
* CVE-2012-6032
* CVE-2012-6033
* CVE-2012-6034
* CVE-2012-6035
* CVE-2012-6036

Resolution
==========

All Xen users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-emulation/xen-4.2.2-r1"

All Xen-tools users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot -v ">=app-emulation/xen-tools-4.2.2-r3"

All Xen-pvgrub users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot -v ">=app-emulation/xen-pvgrub-4.2.2-r1"

References
==========

[ 1 ] CVE-2011-2901
http://nvd.nist.gov/...e=CVE-2011-2901
[ 2 ] CVE-2011-3262
http://nvd.nist.gov/...e=CVE-2011-3262
[ 3 ] CVE-2011-3262
http://nvd.nist.gov/...e=CVE-2011-3262
[ 4 ] CVE-2012-0217
http://nvd.nist.gov/...e=CVE-2012-0217
[ 5 ] CVE-2012-0218
http://nvd.nist.gov/...e=CVE-2012-0218
[ 6 ] CVE-2012-2934
http://nvd.nist.gov/...e=CVE-2012-2934
[ 7 ] CVE-2012-3432
http://nvd.nist.gov/...e=CVE-2012-3432
[ 8 ] CVE-2012-3433
http://nvd.nist.gov/...e=CVE-2012-3433
[ 9 ] CVE-2012-3494
http://nvd.nist.gov/...e=CVE-2012-3494
[ 10 ] CVE-2012-3495
http://nvd.nist.gov/...e=CVE-2012-3495
[ 11 ] CVE-2012-3496
http://nvd.nist.gov/...e=CVE-2012-3496
[ 12 ] CVE-2012-3497
http://nvd.nist.gov/...e=CVE-2012-3497
[ 13 ] CVE-2012-3498
http://nvd.nist.gov/...e=CVE-2012-3498
[ 14 ] CVE-2012-3515
http://nvd.nist.gov/...e=CVE-2012-3515
[ 15 ] CVE-2012-4411
http://nvd.nist.gov/...e=CVE-2012-4411
[ 16 ] CVE-2012-4535
http://nvd.nist.gov/...e=CVE-2012-4535
[ 17 ] CVE-2012-4536
http://nvd.nist.gov/...e=CVE-2012-4536
[ 18 ] CVE-2012-4537
http://nvd.nist.gov/...e=CVE-2012-4537
[ 19 ] CVE-2012-4538
http://nvd.nist.gov/...e=CVE-2012-4538
[ 20 ] CVE-2012-4539
http://nvd.nist.gov/...e=CVE-2012-4539
[ 21 ] CVE-2012-5510
http://nvd.nist.gov/...e=CVE-2012-5510
[ 22 ] CVE-2012-5511
http://nvd.nist.gov/...e=CVE-2012-5511
[ 23 ] CVE-2012-5512
http://nvd.nist.gov/...e=CVE-2012-5512
[ 24 ] CVE-2012-5513
http://nvd.nist.gov/...e=CVE-2012-5513
[ 25 ] CVE-2012-5514
http://nvd.nist.gov/...e=CVE-2012-5514
[ 26 ] CVE-2012-5515
http://nvd.nist.gov/...e=CVE-2012-5515
[ 27 ] CVE-2012-5525
http://nvd.nist.gov/...e=CVE-2012-5525
[ 28 ] CVE-2012-5634
http://nvd.nist.gov/...e=CVE-2012-5634
[ 29 ] CVE-2012-6030
http://nvd.nist.gov/...e=CVE-2012-6030
[ 30 ] CVE-2012-6031
http://nvd.nist.gov/...e=CVE-2012-6031
[ 31 ] CVE-2012-6032
http://nvd.nist.gov/...e=CVE-2012-6032
[ 32 ] CVE-2012-6033
http://nvd.nist.gov/...e=CVE-2012-6033
[ 33 ] CVE-2012-6034
http://nvd.nist.gov/...e=CVE-2012-6034
[ 34 ] CVE-2012-6035
http://nvd.nist.gov/...e=CVE-2012-6035
[ 35 ] CVE-2012-6036
http://nvd.nist.gov/...e=CVE-2012-6036
[ 36 ] CVE-2012-6075
http://nvd.nist.gov/...e=CVE-2012-6075
[ 37 ] CVE-2012-6333
http://nvd.nist.gov/...e=CVE-2012-6333
[ 38 ] CVE-2013-0151
http://nvd.nist.gov/...e=CVE-2013-0151
[ 39 ] CVE-2013-0152
http://nvd.nist.gov/...e=CVE-2013-0152
[ 40 ] CVE-2013-0153
http://nvd.nist.gov/...e=CVE-2013-0153
[ 41 ] CVE-2013-0154
http://nvd.nist.gov/...e=CVE-2013-0154
[ 42 ] CVE-2013-0215
http://nvd.nist.gov/...e=CVE-2013-0215
[ 43 ] CVE-2013-1432
http://nvd.nist.gov/...e=CVE-2013-1432
[ 44 ] CVE-2013-1917
http://nvd.nist.gov/...e=CVE-2013-1917
[ 45 ] CVE-2013-1918
http://nvd.nist.gov/...e=CVE-2013-1918
[ 46 ] CVE-2013-1919
http://nvd.nist.gov/...e=CVE-2013-1919
[ 47 ] CVE-2013-1920
http://nvd.nist.gov/...e=CVE-2013-1920
[ 48 ] CVE-2013-1922
http://nvd.nist.gov/...e=CVE-2013-1922
[ 49 ] CVE-2013-1952
http://nvd.nist.gov/...e=CVE-2013-1952
[ 50 ] CVE-2013-1964
http://nvd.nist.gov/...e=CVE-2013-1964
[ 51 ] CVE-2013-2076
http://nvd.nist.gov/...e=CVE-2013-2076
[ 52 ] CVE-2013-2077
http://nvd.nist.gov/...e=CVE-2013-2077
[ 53 ] CVE-2013-2078
http://nvd.nist.gov/...e=CVE-2013-2078
[ 54 ] CVE-2013-2194
http://nvd.nist.gov/...e=CVE-2013-2194
[ 55 ] CVE-2013-2195
http://nvd.nist.gov/...e=CVE-2013-2195
[ 56 ] CVE-2013-2196
http://nvd.nist.gov/...e=CVE-2013-2196
[ 57 ] CVE-2013-2211
http://nvd.nist.gov/...e=CVE-2013-2211
[ 58 ] Xen TMEM
http://lists.xen.org...9/msg00006.html

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

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

http://security.gent...a-201309-24.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 ( -at -) gentoo.org or alternatively, you may file a bug at
https://bugs.gentoo.org.

License
=======

Copyright 2013 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://creativecommo...enses/by-sa/2.5







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