CVEvulnerability
CVE-2022-33747
3.8 LOW
Official page ↗
- Status
- Modified
- Published
- 2022-10-11
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 3.8 LOW — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L
- Weaknesses
- CWE-404
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 configurations
• xen xen
• fedoraproject fedora 35
• fedoraproject fedora 36
• fedoraproject fedora 37
• debian debian linux 11.0
Related
Weakness · CWE (1)
- CWE-404 Improper Resource Shutdown or Release weakness
References
- http://www.openwall.com/lists/oss-security/2022/10/11/5 Mailing List, Patch, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-409.html Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWSC77GS5NATI3TT7FMVPULUPXR635XQ/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202402-07 security.gentoo.org
- https://www.debian.org/security/2022/dsa-5272 Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-409.txt Patch, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2022/10/11/5 Mailing List, Patch, Third Party Advisory
- http://xenbits.xen.org/xsa/advisory-409.html Patch, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWSC77GS5NATI3TT7FMVPULUPXR635XQ/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/ lists.fedoraproject.org
- https://security.gentoo.org/glsa/202402-07 security.gentoo.org
- https://www.debian.org/security/2022/dsa-5272 Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-409.txt Patch, Vendor Advisory