Xen: Multiple Vunlerabilities

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 remote attacker can utilize multiple vectors to execute arbitrary code, cause Denial of Service, or gain access to data on the host.

Workaround

There is no known workaround at this time.

Resolution

All Xen 4.3 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-emulations/xen-4.3.2-r2"

All Xen 4.2 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-emulations/xen-4.2.4-r2"

All xen-tools 4.3 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose
 ">=app-emulations/xen-tools-4.3.2-r2"

All xen-tools 4.2 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose
 ">=app-emulations/xen-tools-4.2.4-r2"

All Xen PVGRUB 4.3 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-emulations/xen-pvgrub-4.3.2"

All Xen PVGRUB 4.2 users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-emulations/xen-pvgrub-4.2.4"