CVE-2012-2934

high

Description

Xen 4.0, and 4.1, when running a 64-bit PV guest on "older" AMD CPUs, does not properly protect against a certain AMD processor bug, which allows local guest OS users to cause a denial of service (host hang) via sequential execution of instructions across a non-canonical boundary, a different vulnerability than CVE-2012-0217.

References

http://www.securityfocus.com/bid/53961

http://www.debian.org/security/2012/dsa-2501

http://support.amd.com/us/Processor_TechDocs/25759.pdf

http://security.gentoo.org/glsa/glsa-201309-24.xml

http://secunia.com/advisories/55082

http://secunia.com/advisories/51413

http://lists.xen.org/archives/html/xen-announce/2012-06/msg00002.html

http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00018.html

http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00017.html

Details

Source: Mitre, NVD

Published: 2012-12-03

Risk Information

CVSS v2

Base Score: 1.9

Vector: CVSS2#AV:L/AC:M/Au:N/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:H

Severity: High