GLSA 202107-30: Xen: Multiple vulnerabilities

Severity:	high
Title:	Xen: Multiple vulnerabilities
Date:	07/12/2021
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	Architecture(s)
app-emulation/xen	< 4.15.0-r1	>= 4.14.2-r1	All supported architectures

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

• CVE-2021-3308
• CVE-2021-28693
• CVE-2021-28692
• CVE-2021-28691
• CVE-2021-28690
• CVE-2021-28687
• CVE-2021-26313
• CVE-2021-0089
• CVE-2020-29571
• CVE-2020-29570
• CVE-2020-29569
• CVE-2020-29568
• CVE-2020-29567
• CVE-2020-29566
• CVE-2020-29487
• CVE-2020-29486
• CVE-2020-29479

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202107-30.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@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

License

Copyright 2010 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.