VULNERABILITY

Gentoo Linux: CVE-2022-33747: Xen: Multiple Vulnerabilities

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Gentoo Linux: CVE-2022-33747: Xen: Multiple Vulnerabilities

Severity
2
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:P)
Published
10/11/2022
Created
02/06/2024
Added
02/05/2024
Modified
01/30/2025

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.

Solution(s)

  • gentoo-linux-upgrade-app-emulation-xen

References

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