CVE-2012-0218

medium

Description

Xen 3.4, 4.0, and 4.1, when the guest OS has not registered a handler for a syscall or sysenter instruction, does not properly clear a flag for exception injection when injecting a General Protection Fault, which allows local PV guest OS users to cause a denial of service (guest crash) by later triggering an exception that would normally be handled within Xen.

References

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

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

http://secunia.com/advisories/55082

http://lists.xen.org/archives/html/xen-announce/2012-06/msg00003.html

Details

Source: Mitre, NVD

Published: 2012-12-03

Updated: 2013-10-11

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: 6.5

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

Severity: Medium