National Vulnerability Database (NVD) National Vulnerability Database (CVE-2012-3432)

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Last updated: Fri May 24 03:39:12 EDT 2013

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Vulnerability Summary for CVE-2012-3432

Original release date:12/03/2012

Last revised:02/01/2013

Source: US-CERT/NIST

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:1.9 (LOW) (AV:L/AC:M/Au:N/C:N/I:N/A:P) (legend)

Impact Subscore: 2.9

Exploitability Subscore: 3.4

CVSS Version 2 Metrics:

Access Vector: Locally exploitable

Access Complexity: Medium

Authentication: Not required to exploit

Impact Type:Allows disruption of serviceUnknown

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External Source: BID

Name: 54691

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

External Source: DEBIAN

Name: DSA-2531

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

External Source: MLIST

Name: [Xen-devel] 20120727 Xen Security Advisory 10 (CVE-2012-3432) - HVM user mode MMIO emul DoS

Type: Advisory; Exploit

Hyperlink:http://lists.xen.org/archives/html/xen-devel/2012-07/msg01649.html

External Source: SUSE

Name: openSUSE-SU-2012:1174