kernel: xen: Guest effectable page reference leak in MMU_MACHPHYS_UPDATE handling
Published Nov 24, 2014
7.1
HIGHCVSS 2.0
EPSS 2.20%
Description
The do_mmu_update function in arch/x86/mm.c in Xen 3.2.x through 4.4.x does not properly manage page references, which allows remote domains to cause a denial of service by leveraging control over an HVM guest and a crafted MMU_MACHPHYS_UPDATE.
Affected products
No data.
Configuration 1
- 3.2.0
- 3.2.1
- 3.2.2
- 3.2.3
- 3.3.0
- 3.3.1
- 3.3.2
- 3.4.0
- 3.4.1
- 3.4.2
- 3.4.3
- 3.4.4
- 4.0.0
- 4.0.1
- 4.0.2
- 4.0.3
- 4.0.4
- 4.1.0
- 4.1.1
- 4.1.2
- 4.1.3
- 4.1.4
- 4.1.5
- 4.1.6.1
- 4.2.0
- 4.2.1
- 4.2.2
- 4.2.3
- 4.3.0
- 4.3.1
- 4.4.0
- 4.4.1
Configuration 2
- 7.0
No data.
Red Hat Enterprise Linux 5
kernel-xen
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | kernel-xen | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Enterprise Linux 5 is now in Production 3 Phase of the support and maintenance life cycle. This has been rated as having Low security impact and is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
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:N/AC:M/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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.20% (0.02197) | 81.85th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.20% (0.02197) | 80.11th | v5 (v2026.06.15) |
| Mar 17, 2025 | 2.33% (0.02333) | 83.73th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.27% (0.00270) | 68.70th | v3 (v2023.03.01) |
| May 20, 2024 | 0.27% (0.00270) | 67.70th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.29% (0.00294) | 68.36th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.29% (0.00294) | 64.32th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.18% (0.01183) | 61.76th | v2 (v2022.01.01) |
| Oct 19, 2022 | 1.18% (0.01183) | 60.79th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.18% (0.01183) | 58.77th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.18% (0.01183) | 35.15th | v2 (v2022.01.01) |
References (12)
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00005.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00010.html vendor-advisoryx_refsource_SUSEThird Party Advisory
- http://secunia.com/advisories/62672 third-party-advisoryx_refsource_SECUNIAPermissions RequiredThird Party Advisory
- http://www.debian.org/security/2015/dsa-3140 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.securityfocus.com/bid/71207 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://xenbits.xen.org/xsa/advisory-113.html x_refsource_CONFIRMPatchVendor Advisory
- https://access.redhat.com/security/cve/CVE-2014-9030 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1166913 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/98853 vdb-entryx_refsource_XF
- https://nvd.nist.gov/vuln/detail/CVE-2014-9030
- https://security.gentoo.org/glsa/201504-04 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2014-9030
Change history (0)
No recorded changes yet.