CVE-2021-28706

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Summary

CVECVE-2021-28706
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-11-24 01:15:00 UTC
Updated2024-02-04 08:15:00 UTC
Descriptionguests may exceed their designated memory limit When a guest is permitted to have close to 16TiB of memory, it may be able to issue hypercalls to increase its memory allocation beyond the administrator established limit. This is a result of a calculation done with 32-bit precision, which may overflow. It would then only be the overflowed (and hence small) number which gets compared against the established upper bound.

Risk And Classification

Problem Types: CWE-770

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 11.0 All All All
Operating System Fedoraproject Fedora 34 All All All
Operating System Fedoraproject Fedora 35 All All All
Operating System Xen Xen All All All All

References

ReferenceSourceLinkTags
Xen: Multiple Vulnerabilities (GLSA 202402-07) — Gentoo security security.gentoo.org
[SECURITY] Fedora 35 Update: xen-4.15.1-4.fc35 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
[SECURITY] Fedora 35 Update: xen-4.15.1-4.fc35 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[SECURITY] Fedora 34 Update: xen-4.14.3-3.fc34 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
Debian -- Security Information -- DSA-5017-1 xen DEBIAN www.debian.org
[SECURITY] Fedora 34 Update: xen-4.14.3-3.fc34 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
xenbits.xenproject.org/xsa/advisory-385.txt MISC xenbits.xenproject.org
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

  • 178928 Debian Security Update for xen (DSA 5017-1)
  • 184152 Debian Security Update for xen (CVE-2021-28706)
  • 282100 Fedora Security Update for xen (FEDORA-2021-2b3a2de94f)
  • 282136 Fedora Security Update for xen (FEDORA-2021-03645e9807)
  • 390253 Oracle Managed Virtualization (VM) Server for x86 Security Update for xen (OVMSA-2022-0004)
  • 390255 Oracle Managed Virtualization (VM) Server for x86 Security Update for xen (OVMSA-2022-0003)
  • 500805 Alpine Linux Security Update for xen
  • 500806 Alpine Linux Security Update for xen
  • 501523 Alpine Linux Security Update for xen
  • 501801 Alpine Linux Security Update for xen
  • 710858 Gentoo Linux Xen Multiple Vulnerabilities (GLSA 202402-07)
  • 751411 SUSE Enterprise Linux Security Update for xen (SUSE-SU-2021:3852-1)
  • 751414 SUSE Enterprise Linux Security Update for xen (SUSE-SU-2021:3851-1)
  • 751417 SUSE Enterprise Linux Security Update for xen (SUSE-SU-2021:3842-1)
  • 751422 SUSE Enterprise Linux Security Update for xen (SUSE-SU-2021:3849-1)
  • 751454 OpenSUSE Security Update for xen (openSUSE-SU-2021:1543-1)
  • 751474 OpenSUSE Security Update for xen (openSUSE-SU-2021:3968-1)
  • 751477 SUSE Enterprise Linux Security Update for xen (SUSE-SU-2021:3977-1)
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