CVE-2012-3432

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

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

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

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

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

http://secunia.com/advisories/55082

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

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

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

Details

Source: MITRE

Published: 2012-12-03

Updated: 2013-10-11

Type: CWE-264

Risk Information

CVSS v2

Base Score: 1.9

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

Impact Score: 2.9

Exploitability Score: 3.4

Severity: LOW

Tenable Plugins

View all (10 total)

IDNameProductFamilySeverity
79481OracleVM 2.2 : xen (OVMSA-2012-0036)NessusOracleVM Local Security Checks
low
74751openSUSE Security Update : Xen (openSUSE-SU-2012:1176-1)NessusSuSE Local Security Checks
high
74750openSUSE Security Update : Xen (openSUSE-SU-2012:1172-1)NessusSuSE Local Security Checks
high
74749openSUSE Security Update : Xen (openSUSE-SU-2012:1174-1)NessusSuSE Local Security Checks
high
70184GLSA-201309-24 : Xen: Multiple vulnerabilitiesNessusGentoo Local Security Checks
high
64235SuSE 11.2 Security Update : Xen and libvirt (SAT Patch Number 6640)NessusSuSE Local Security Checks
medium
64234SuSE 11.1 Security Update : Xen (SAT Patch Number 6653)NessusSuSE Local Security Checks
medium
61578Debian DSA-2531-1 : xen - Denial of ServiceNessusDebian Local Security Checks
medium
61423Fedora 16 : xen-4.1.2-9.fc16 (2012-11190)NessusFedora Local Security Checks
low
61422Fedora 17 : xen-4.1.2-24.fc17 (2012-11182)NessusFedora Local Security Checks
low