kernel: xen: HVM guest destroy p2m teardown host DoS vulnerability
Published Nov 24, 2012
4.9
MEDIUMCVSS 2.0
EPSS 0.42%
Description
Xen 4.0 and 4.1 allows local HVM guest OS kernels to cause a denial of service (domain 0 VCPU hang and kernel panic) by modifying the physical address space in a way that triggers excessive shared page search time during the p2m teardown.
Affected products
No data.
No data.
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 5
kernel-xen
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 5 | kernel-xen | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Not vulnerable. The versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, and Red Hat Enterprise MRG are not affected. The versions of the kernel-xen packages as shipped with Red Hat Enterprise Linux 5 are not affected because we did not provide support for memory sharing functionality.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.42% (0.00416) | 33.53th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.42% (0.00416) | 32.98th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.06% (0.00057) | 14.87th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00062) | 28.60th | v3 (v2023.03.01) |
| Jun 13, 2024 | 0.06% (0.00062) | 26.61th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00062) | 24.59th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 22, 2023 | 1.28% (0.01282) | 68.05th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
References (14)
- http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00024.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00025.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00017.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-security-announce/2012-09/msg00018.html vendor-advisoryx_refsource_SUSE
- http://lists.xen.org/archives/html/xen-devel/2012-08/msg00855.html mailing-listx_refsource_MLIST
- http://secunia.com/advisories/55082 third-party-advisoryx_refsource_SECUNIA
- http://security.gentoo.org/glsa/glsa-201309-24.xml vendor-advisoryx_refsource_GENTOO
- http://www.debian.org/security/2012/dsa-2531 vendor-advisoryx_refsource_DEBIAN
- http://www.openwall.com/lists/oss-security/2012/08/09/3 mailing-listx_refsource_MLIST
- http://www.securityfocus.com/bid/54942 vdb-entryx_refsource_BID
- https://access.redhat.com/security/cve/CVE-2012-3433 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=843582 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2012-3433
- https://www.cve.org/CVERecord?id=CVE-2012-3433
Change history (0)
No recorded changes yet.