Xen: Multiple vulnerabilities — GLSA 201612-56

Multiple vulnerabilities have been found in Xen, the worst of which could lead to the execution of arbitrary code on the host system.

Affected Packages

app-emulation/xen on all architectures
Affected versions < 4.7.1-r4
Unaffected versions >= 4.7.1-r4
app-emulation/xen-tools on all architectures
Affected versions < 4.7.1-r4
Unaffected versions >= 4.7.1-r4
app-emulation/xen-pvgrub on all architectures
Affected versions < 4.7.1-r1
Unaffected versions >= 4.7.1-r1

Background

Xen is a bare-metal hypervisor.

Description

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

Impact

A local attacker could possibly execute arbitrary code with the privileges of the process, could gain privileges on the host system, cause a Denial of Service condition, or obtain sensitive information.

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-4.7.1-r4"
 

All Xen Tools users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose
 ">=app-emulation/xen-tools-4.7.1-r4"
 

All Xen PvGrub users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose
 ">=app-emulation/xen-pvgrub-4.7.1-r1"
 

References

Release Date
December 31, 2016

Latest Revision
January 03, 2017: 2

Severity
normal

Exploitable
local

Bugzilla entries