CVE-2012-3432

medium

Description

The handle_mmio function in arch/x86/hvm/io.c in the MMIO operations emulator for Xen 3.3 and 4.x, when running an HVM guest, does not properly reset certain state information between emulation cycles, which allows local guest OS users to cause a denial of service (guest OS crash) via unspecified operations on MMIO regions.

References

http://www.securityfocus.com/bid/54691

http://www.debian.org/security/2012/dsa-2531

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

http://secunia.com/advisories/55082

http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00018.html

http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html

http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00025.html

http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00024.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