GLSA 201611-09: Xen: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	Xen: Multiple vulnerabilities
Date:	11/15/2016
Bugs:	#588780, #593198, #594850
ID:	201611-09

Synopsis

Multiple vulnerabilities have been found in Xen, the worst of which allows gaining of privileges on the host system.

Background

Xen is a bare-metal hypervisor.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-emulation/xen	< 4.6.3-r3	>= 4.6.3-r3	All supported architectures
app-emulation/xen-tools	< 4.6.3-r2	>= 4.6.3-r2	All supported architectures

Description

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

Impact

A malicious guest administrator could escalate their privileges on the host system or cause a Denial of Service. Additionally, a malicious unprivileged guest user may be able to obtain or corrupt sensitive information (including cryptographic material) in other programs in the same guest.

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-4.6.3-r3"

All Xen tools users should upgrade to the latest version:


      # emerge --sync
      # emerge --ask --oneshot --verbose ">=app-emulation/xen-tools-4.6.3-r2

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201611-09.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.