CVE-2022-42335

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Summary

CVECVE-2022-42335
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-04-25 13:15:00 UTC
Updated2024-02-04 08:15:00 UTC
Descriptionx86 shadow paging arbitrary pointer dereference In environments where host assisted address translation is necessary but Hardware Assisted Paging (HAP) is unavailable, Xen will run guests in so called shadow mode. Due to too lax a check in one of the hypervisor routines used for shadow page handling it is possible for a guest with a PCI device passed through to cause the hypervisor to access an arbitrary pointer partially under guest control.

Risk And Classification

Problem Types: CWE-476

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Fedoraproject Fedora 38 All All All
Operating System Xen Xen 4.17.0 All All All

References

ReferenceSourceLinkTags
Xen: Multiple Vulnerabilities (GLSA 202402-07) — Gentoo security security.gentoo.org
xenbits.xenproject.org/xsa/advisory-430.txt MISC xenbits.xenproject.org
[SECURITY] Fedora 38 Update: xen-4.17.0-9.fc38 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
XSA-430 - Xen Security Advisories CONFIRM xenbits.xen.org
[SECURITY] Fedora 38 Update: xen-4.17.0-9.fc38 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
oss-security - Xen Security Advisory 430 v2 (CVE-2022-42335) - x86 shadow paging arbitrary pointer dereference MLIST www.openwall.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

LEGACY: Array

Legacy QID Mappings

  • 182109 Debian Security Update for xen (CVE-2022-42335)
  • 284159 Fedora Security Update for xen (FEDORA-2023-d28433ead1)
  • 503145 Alpine Linux Security Update for xen
  • 505966 Alpine Linux Security Update for xen
  • 710858 Gentoo Linux Xen Multiple Vulnerabilities (GLSA 202402-07)
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