A Xen security update is available for Gentoo Linux to address multiple vulnerabilities that could allow for privilege escalation.
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Gentoo Linux Security Advisory GLSA 202003-56
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https://security.gentoo.org/
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Severity: High
Title: Xen: Multiple vulnerabilities
Date: March 25, 2020
Bugs: #686024, #699048, #699996, #702644
ID: 202003-56
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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
=================
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Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-emulation/xen < 4.12.0-r1 >= 4.12.0-r1
2 app-emulation/xen-tools < 4.12.0-r1 >= 4.12.0-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 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-4.12.0-r1"
References
==========
[ 1 ] CVE-2018-12126
https://nvd.nist.gov/vuln/detail/CVE-2018-12126
[ 2 ] CVE-2018-12127
https://nvd.nist.gov/vuln/detail/CVE-2018-12127
[ 3 ] CVE-2018-12130
https://nvd.nist.gov/vuln/detail/CVE-2018-12130
[ 4 ] CVE-2018-12207
https://nvd.nist.gov/vuln/detail/CVE-2018-12207
[ 5 ] CVE-2018-12207
https://nvd.nist.gov/vuln/detail/CVE-2018-12207
[ 6 ] CVE-2019-11091
https://nvd.nist.gov/vuln/detail/CVE-2019-11091
[ 7 ] CVE-2019-11135
https://nvd.nist.gov/vuln/detail/CVE-2019-11135
[ 8 ] CVE-2019-18420
https://nvd.nist.gov/vuln/detail/CVE-2019-18420
[ 9 ] CVE-2019-18421
https://nvd.nist.gov/vuln/detail/CVE-2019-18421
[ 10 ] CVE-2019-18423
https://nvd.nist.gov/vuln/detail/CVE-2019-18423
[ 11 ] CVE-2019-18424
https://nvd.nist.gov/vuln/detail/CVE-2019-18424
[ 12 ] CVE-2019-18425
https://nvd.nist.gov/vuln/detail/CVE-2019-18425
[ 13 ] CVE-2019-19577
https://nvd.nist.gov/vuln/detail/CVE-2019-19577
[ 14 ] CVE-2019-19578
https://nvd.nist.gov/vuln/detail/CVE-2019-19578
[ 15 ] CVE-2019-19580
https://nvd.nist.gov/vuln/detail/CVE-2019-19580
[ 16 ] CVE-2019-19581
https://nvd.nist.gov/vuln/detail/CVE-2019-19581
[ 17 ] CVE-2019-19582
https://nvd.nist.gov/vuln/detail/CVE-2019-19582
[ 18 ] CVE-2019-19583
https://nvd.nist.gov/vuln/detail/CVE-2019-19583
Availability
============
This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:
https://security.gentoo.org/glsa/202003-56
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 2020 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
