CVE-2012-3432
The handle_mmio function in arch/x86/hvm/io.c in the MMIO operations emulator for Xen 3.3 and 4.x...
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.
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2012-3432- CVSS 2.0
- 1.9 Low
AV:L/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-264
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2012-3432- Updated
- 2026-11-02
EUVDEUVD-2012-3399 No score
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.
- Record
EUVD-2012-3399- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rx77-gcq6-838g No score
The handle_mmio function in arch/x86/hvm/io.c in the MMIO operations emulator for Xen 3.3 and 4.x...
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.
- Record
GHSA-rx77-gcq6-838g- Updated
- 2026-11-02
OSV No score
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.
- Record
CVE-2012-3432- Updated
- 2026-11-02
OSVDEBIAN-CVE-2012-3432 No score
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.
- Record
DEBIAN-CVE-2012-3432- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10196-1 No score
xen-4.7.0_12-1.3 on GA media
These are all security issues fixed in the xen-4.7.0_12-1.3 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10196-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
xenDebian:12 |
before 4.1.3-1 | 4.1.3-1 |
xenDebian:13 |
before 4.1.3-1 | 4.1.3-1 |
xenDebian:14 |
before 4.1.3-1 | 4.1.3-1 |
xenDebian:6.0 |
before 4.0.1-5.3, plus listed versions 4.0.1-24.0.1-44.0.1-54.0.1-5.14.0.1-5.2 |
4.0.1-5.3 |
xenopenSUSE:Tumbleweed |
before 4.7.0_12-1.3 | 4.7.0_12-1.3 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2012-3432 is a low vulnerability (CVSS 1.9) in Xen, published August 18, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.64%, the 50th percentile. Fixed in xen 4.1.3-1.
References
debian.org/security/2012/dsa-2531
secunia.com/advisories/55082
lists.xen.org/archives/html/xen-devel/2012-07/msg01649.html
security.gentoo.org/glsa/glsa-201309-24.xml
lists.opensuse.org/opensuse-security-announce/2012-08/msg00025.html
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securityfocus.com/bid/54691
nvd.nist.gov/vuln/detail/CVE-2012-3432
github.com/advisories/GHSA-rx77-gcq6-838g
security-tracker.debian.org/tracker/CVE-2012-3432
suse.com/security/cve/CVE-2011-1898