🛡️ CVE-2022-33747
🟢 CVSS 3.8 — Low ✅ No Known Exploit CWE-404 NVD
3.8
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity LOW
CVSS Score 3.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
CWE CWE-404
Public Exploit ✅ No
Source NVD
Published 2022-10-11
Updated 2026-06-08
Modified 2024-11-21

Affected Packages

Software From version Fixed in
debian-linux — —
fedora — —
xen — —

References

Mailing List, Patch, Third Party Advisory http://www.openwall.com/lists/oss-security/2022/10/11/5
Mailing List, Patch, Third Party Advisory http://www.openwall.com/lists/oss-security/2022/10/11/5

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