Arm: unbounded memory consumption for 2nd-level page tables Certain actions require e.g
Published Oct 11, 2022
3.8
LOWCVSS 3.1
EPSS 0.28%
Description
Arm: unbounded memory consumption for 2nd-level page tables Certain actions require e.g. removing pages from a guest's P2M (Physical-to-Machine) mapping. When large pages are in use to map guest pages in the 2nd-stage page tables, such a removal operation may incur a memory allocation (to replace a large mapping with individual smaller ones). These memory allocations are taken from the global memory pool. A malicious guest might be able to cause the global memory pool to be exhausted by manipulating its own P2M mappings.
Affected products
No data.
Configuration 2
- 35
- 36
- 37
Configuration 3
- 11.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
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 4, 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 4, 2026 | 0.28% (0.00276) | 18.21th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.26% (0.00259) | 16.94th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.02% (0.00020) | 3.01th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00049) | 20.09th | v3 (v2023.03.01) |
| Apr 29, 2024 | 0.05% (0.00049) | 16.81th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.05% (0.00049) | 14.80th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00045) | 12.45th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.03% (0.01034) | 41.69th | v2 (v2022.01.01) |
| Nov 15, 2022 | 1.03% (0.01034) | 40.40th | v2 (v2022.01.01) |
| Oct 31, 2022 | 0.95% (0.00950) | 31.13th | v2 (v2022.01.01) |
| Oct 12, 2022 | 0.89% (0.00890) | 28.96th | v2 (v2022.01.01) |
References (8)
- http://www.openwall.com/lists/oss-security/2022/10/11/5 mailing-listMailing ListPatchThird Party Advisory
- http://xenbits.xen.org/xsa/advisory-409.html PatchVendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/ vendor-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWSC77GS5NATI3TT7FMVPULUPXR635XQ/ vendor-advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/ vendor-advisory
- https://security.gentoo.org/glsa/202402-07 vendor-advisory
- https://www.debian.org/security/2022/dsa-5272 vendor-advisoryThird Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-409.txt PatchVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.openwall.com/lists/oss-security/2022/10/11/5 | mailing-listMailing ListPatchThird Party Advisory | |
| http://xenbits.xen.org/xsa/advisory-409.html | PatchVendor Advisory | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/ | vendor-advisory | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWSC77GS5NATI3TT7FMVPULUPXR635XQ/ | vendor-advisory | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/ | vendor-advisory | |
| https://security.gentoo.org/glsa/202402-07 | vendor-advisory | |
| https://www.debian.org/security/2022/dsa-5272 | vendor-advisoryThird Party Advisory | |
| https://xenbits.xenproject.org/xsa/advisory-409.txt | PatchVendor Advisory |
Change history (0)
No recorded changes yet.