vulnerability
Debian: CVE-2022-33747: xen -- security update
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:L/Au:S/C:N/I:N/A:P) | Oct 11, 2022 | Nov 8, 2022 | Jan 30, 2025 |
Severity
2
CVSS
(AV:L/AC:L/Au:S/C:N/I:N/A:P)
Published
Oct 11, 2022
Added
Nov 8, 2022
Modified
Jan 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
debian-upgrade-xen
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