CVE-2022-33747 (GCVE-0-2022-33747)
Vulnerability from cvelistv5 – Published: 2022-10-11 00:00 – Updated: 2024-08-03 08:09
VLAI?
Summary
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.
Severity ?
No CVSS data available.
CWE
- unknown
Assigner
References
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"url": "http://xenbits.xen.org/xsa/advisory-409.html"
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"name": "[oss-security] 20221011 Xen Security Advisory 409 v3 (CVE-2022-33747) - Arm: unbounded memory consumption for 2nd-level page tables",
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},
{
"name": "DSA-5272",
"tags": [
"vendor-advisory",
"x_transferred"
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"url": "https://www.debian.org/security/2022/dsa-5272"
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{
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"tags": [
"vendor-advisory",
"x_transferred"
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"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/"
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{
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"tags": [
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"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/"
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{
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"url": "https://security.gentoo.org/glsa/202402-07"
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"title": "CVE Program Container"
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}
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},
{
"name": "DSA-5272",
"tags": [
"vendor-advisory"
],
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{
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"tags": [
"vendor-advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TJOMUNGW6VTK5CZZRLWLVVEOUPEQBRHI/"
},
{
"name": "FEDORA-2022-99af00f60e",
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"vendor-advisory"
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"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YZVXG7OOOXCX6VIPEMLFDPIPUTFAYWPE/"
},
{
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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