CVE-2022-33747

Summary

CVECVE-2022-33747
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2022-10-11 13:15:00 UTC
Updated2024-02-04 08:15:00 UTC
DescriptionArm: 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.

Risk And Classification

Problem Types: CWE-404

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 11.0 All All All
Operating System Fedoraproject Fedora 35 All All All
Operating System Fedoraproject Fedora 36 All All All
Operating System Fedoraproject Fedora 37 All All All
Operating System Xen Xen All All All All

References

ReferenceSourceLinkTags
oss-security - Xen Security Advisory 409 v3 (CVE-2022-33747) - Arm: unbounded memory consumption for 2nd-level page tables MLIST www.openwall.com
[SECURITY] Fedora 36 Update: xen-4.16.2-2.fc36 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
xenbits.xenproject.org/xsa/advisory-409.txt MISC xenbits.xenproject.org
[SECURITY] Fedora 37 Update: xen-4.16.2-2.fc37 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
Xen: Multiple Vulnerabilities (GLSA 202402-07) — Gentoo security security.gentoo.org
Debian -- Security Information -- DSA-5272-1 xen DEBIAN www.debian.org
XSA-409 - Xen Security Advisories CONFIRM xenbits.xen.org
[SECURITY] Fedora 36 Update: xen-4.16.2-2.fc36 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 37 Update: xen-4.16.2-2.fc37 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 35 Update: xen-4.15.3-7.fc35 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 35 Update: xen-4.15.3-7.fc35 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 181193 Debian Security Update for xen (DSA 5272-1)
  • 183549 Debian Security Update for xen (CVE-2022-33747)
  • 283267 Fedora Security Update for xen (FEDORA-2022-5b594b82ac)
  • 283319 Fedora Security Update for xen (FEDORA-2022-99af00f60e)
  • 283476 Fedora Security Update for xen (FEDORA-2022-d80cc73088)
  • 502600 Alpine Linux Security Update for xen
  • 502619 Alpine Linux Security Update for xen
  • 503143 Alpine Linux Security Update for xen
  • 503695 Alpine Linux Security Update for xen
  • 504549 Alpine Linux Security Update for xen
  • 505964 Alpine Linux Security Update for xen
  • 710858 Gentoo Linux Xen Multiple Vulnerabilities (GLSA 202402-07)
  • 752792 SUSE Enterprise Linux Security Update for xen (SUSE-SU-2022:3947-1)
  • 752807 SUSE Enterprise Linux Security Update for xen (SUSE-SU-2022:4007-1)
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