xen: Race between domain destruction and memory allocation decrease on ARM
Published Oct 30, 2015
4.7
MEDIUMCVSS 2.0
EPSS 0.28%
Description
Race condition in the relinquish_memory function in arch/arm/domain.c in Xen 4.6.x and earlier allows local domains with partial management control to cause a denial of service (host crash) via vectors involving the destruction of a domain and using XENMEM_decrease_reservation to reduce the memory of the domain.
Affected products
Remediation
Red Hat mitigation
There is no known mitigation. Switching from disaggregated to a non-disaggregated operation does NOT mitigate these vulnerabilities. Rather, it simply recategorises the vulnerability to hostile management code, regarding it "as designed"; thus it merely reclassifies these issues as "not a bug". Users and vendors of disaggregated systems should not change their configuration.
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: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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.28% (0.00279) | 18.39th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.28% (0.00279) | 19.41th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.09% (0.00087) | 22.87th | 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 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.03% (0.01034) | 39.91th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.03% (0.01034) | 37.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.03% (0.01034) | 20.32th | v2 (v2022.01.01) |
References (11)
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html vendor-advisoryx_refsource_FEDORA
- http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html vendor-advisoryx_refsource_FEDORA
- http://www.debian.org/security/2015/dsa-3414 vendor-advisoryx_refsource_DEBIAN
- http://www.securitytracker.com/id/1034030 vdb-entryx_refsource_SECTRACK
- http://xenbits.xen.org/xsa/advisory-147.html x_refsource_CONFIRMVendor Advisory
- https://access.redhat.com/security/cve/CVE-2015-7814 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1271630 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-7814
- https://security.gentoo.org/glsa/201604-03 vendor-advisoryx_refsource_GENTOO
- https://www.cve.org/CVERecord?id=CVE-2015-7814
| Link | Providers | Tags |
|---|---|---|
| http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171082.html | vendor-advisoryx_refsource_FEDORA | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171185.html | vendor-advisoryx_refsource_FEDORA | |
| http://lists.fedoraproject.org/pipermail/package-announce/2015-November/171249.html | vendor-advisoryx_refsource_FEDORA | |
| http://www.debian.org/security/2015/dsa-3414 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.securitytracker.com/id/1034030 | vdb-entryx_refsource_SECTRACK | |
| http://xenbits.xen.org/xsa/advisory-147.html | x_refsource_CONFIRMVendor Advisory | |
| https://access.redhat.com/security/cve/CVE-2015-7814 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1271630 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-7814 | ||
| https://security.gentoo.org/glsa/201604-03 | vendor-advisoryx_refsource_GENTOO | |
| https://www.cve.org/CVERecord?id=CVE-2015-7814 |
Change history (0)
No recorded changes yet.