- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Gentoo Linux Security Advisory GLSA 202107-30
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
https://security.gentoo.org/
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Severity: High
Title: Xen: Multiple vulnerabilities
Date: July 12, 2021
Bugs: #760144, #766474, #783456, #795054
ID: 202107-30

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Synopsis
========

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

Background
==========

Xen is a bare-metal hypervisor.

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

-------------------------------------------------------------------
Package / Vulnerable / Unaffected
-------------------------------------------------------------------
1 app-emulation/xen < 4.15.0-r1 >= 4.14.2-r1
>= 4.15.0-r1

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

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

Impact
======

Please review the referenced CVE identifiers for details.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Xen 4.14.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-emulation/xen-4.14.2-r1"

All Xen 4.15.x users should upgrade to the latest version:

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-emulation/xen-4.15.0-r1"

References
==========

[ 1 ] CVE-2020-29479
https://nvd.nist.gov/vuln/detail/CVE-2020-29479
[ 2 ] CVE-2020-29486
https://nvd.nist.gov/vuln/detail/CVE-2020-29486
[ 3 ] CVE-2020-29487
https://nvd.nist.gov/vuln/detail/CVE-2020-29487
[ 4 ] CVE-2020-29566
https://nvd.nist.gov/vuln/detail/CVE-2020-29566
[ 5 ] CVE-2020-29567
https://nvd.nist.gov/vuln/detail/CVE-2020-29567
[ 6 ] CVE-2020-29568
https://nvd.nist.gov/vuln/detail/CVE-2020-29568
[ 7 ] CVE-2020-29569
https://nvd.nist.gov/vuln/detail/CVE-2020-29569
[ 8 ] CVE-2020-29570
https://nvd.nist.gov/vuln/detail/CVE-2020-29570
[ 9 ] CVE-2020-29571
https://nvd.nist.gov/vuln/detail/CVE-2020-29571
[ 10 ] CVE-2021-0089
https://nvd.nist.gov/vuln/detail/CVE-2021-0089
[ 11 ] CVE-2021-26313
https://nvd.nist.gov/vuln/detail/CVE-2021-26313
[ 12 ] CVE-2021-28687
https://nvd.nist.gov/vuln/detail/CVE-2021-28687
[ 13 ] CVE-2021-28690
https://nvd.nist.gov/vuln/detail/CVE-2021-28690
[ 14 ] CVE-2021-28691
https://nvd.nist.gov/vuln/detail/CVE-2021-28691
[ 15 ] CVE-2021-28692
https://nvd.nist.gov/vuln/detail/CVE-2021-28692
[ 16 ] CVE-2021-28693
https://nvd.nist.gov/vuln/detail/CVE-2021-28693
[ 17 ] CVE-2021-3308
https://nvd.nist.gov/vuln/detail/CVE-2021-3308

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

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

https://security.gentoo.org/glsa/202107-30

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 2021 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


-----BEGIN PGP SIGNATURE-----

iQGTBAEBCgB9FiEEYOpPv/uDUzOcqtTy9JIoEO6gSDsFAmDrra5fFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDYw RUE0RkJGRkI4MzUzMzM5Q0FBRDRGMkY0OTIyODEwRUVBMDQ4M0IACgkQ9JIoEO6g SDvgeggAsolhh+ws29OuA5tDUOVZapGLgGv7wBEwG+mH/bzXs6LYvYH5ZIt1puEo Vd2bYrE0/d3gnH9nwTamp0CymSV2iyFguD/7GHWrzyamShImtQMyYc4ZDZnPBO1E b4jctp9R0BK7fRO23Lb8r+PRV6X1YxUua1YyPXxgHzts9Y/CFFkXPk2jKBzUtgrt ngp53VgJe3Ws/4v9xOcTp2GWyyQ7MqbaUTGM5nOfrYvfP7l7l6+HFCkV8q7qxOK6 yhpyotDK/54zYmUHZwUcdKXW3hhA+UZTJtr3bz7LqgVUlQb5SiH7bEmaEJ33LXF4 LtjCrCBJW6qyZO2zIuhPGkdLKbhk3A==
=/73r
-----END PGP SIGNATURE-----

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)