CVE-2022-33747

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.

• CWE-404

• http://www.openwall.com/lists/oss-security/2022/10/11/5Mailing List, Patch, Third Party Advisory
• http://xenbits.xen.org/xsa/advisory-409.htmlPatch, Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWSC77GS5NATI3TT7FMVPULUPXR635XQ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/
• https://security.gentoo.org/glsa/202402-07
• https://www.debian.org/security/2022/dsa-5272Third Party Advisory
• https://xenbits.xenproject.org/xsa/advisory-409.txtPatch, Vendor Advisory
• http://www.openwall.com/lists/oss-security/2022/10/11/5Mailing List, Patch, Third Party Advisory
• http://xenbits.xen.org/xsa/advisory-409.htmlPatch, Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWSC77GS5NATI3TT7FMVPULUPXR635XQ/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/
• https://security.gentoo.org/glsa/202402-07
• https://www.debian.org/security/2022/dsa-5272Third Party Advisory
• https://xenbits.xenproject.org/xsa/advisory-409.txtPatch, Vendor Advisory

Published

Oct 11, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
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