Xen: Multiple vulnerabilities — GLSA 201705-11

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

Affected packages

Package	app-emulation/xen on all architectures
Affected versions	< 4.7.2-r1
Unaffected versions	>= 4.7.2-r1

Package	app-emulation/xen-tools on all architectures
Affected versions	< 4.7.2
Unaffected versions	>= 4.7.2

Package	app-emulation/xen-pvgrub on all architectures
Affected versions	< 4.7.2
Unaffected versions	>= 4.7.2

Background

Xen is a bare-metal hypervisor.

Description

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

Impact

A local attacker could potentially execute arbitrary code with privileges of Xen (QEMU) process on the host, gain privileges on the host system, or cause a Denial of Service condition.

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-4.7.2-r1:0"

All Xen Tools users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=app-emulation/xen-tools-4.7.2:0"

All Xen pvgrub users should upgrade to the latest version:

 # emerge --sync
 # emerge --ask --oneshot --verbose
 ">=app-emulation/xen-pvgrub-4.7.2:0"

References

Release date
May 26, 2017

Latest revision
May 26, 2017: 1

Severity
normal

Exploitable
local

Bugzilla entries

615980