CVE-2021-38198

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2021-38198
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-08-08 20:15:07 UTC
Updated2026-10-08 21:17:39 UTC
Descriptionarch/x86/kvm/mmu/paging_tmpl.h in the Linux kernel before 5.12.11 incorrectly computes the access permissions of a shadow page, leading to a missing guest protection page fault.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.004500000 probability, percentile 0.371940000 (date 2026-10-10)

Problem Types: NVD-CWE-noinfo | n/a

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
2.0[email protected]Primary2.1AV:L/AC:L/Au:N/C:N/I:N/A:P

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:L/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 9.0 All All All
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
[SECURITY] [DLA 2785-1] linux-4.19 security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11 af854a3a-2127-422b-91ae-364da2661108 cdn.kernel.org Mailing List, Patch, Vendor Advisory
KVM: X86: MMU: Use the correct inherited permissions to get shadow page · torvalds/linux@b1bd5cb · GitHub af854a3a-2127-422b-91ae-364da2661108 github.com Exploit, Patch, Third Party Advisory
[SECURITY] [DLA 2843-1] linux security update af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 159421 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel (ELSA-2021-9474)
  • 159422 Oracle Enterprise Linux Security Update for Unbreakable Enterprise kernel-container (ELSA-2021-9475)
  • 178844 Debian Security Update for linux-4.19 (DLA 2785-1)
  • 178943 Debian Security Update for linux (DLA 2843-1)
  • 180043 Debian Security Update for linux (CVE-2021-38198)
  • 198491 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5070-1)
  • 198541 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5114-1)
  • 198544 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5116-1)
  • 198546 Ubuntu Security Notification for Linux kernel Vulnerabilities (USN-5116-2)
  • 352839 Amazon Linux Security Advisory for kernel: ALAS2-2021-1704
  • 352871 Amazon Linux Security Advisory for kernel : ALAS-2021-1539
  • 353145 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-006
  • 353242 Amazon Linux Security Advisory for kernel : ALAC2012-2022-036
  • 353243 Amazon Linux Security Advisory for kmod-mlx5 : ALAC2012-2022-037
  • 353244 Amazon Linux Security Advisory for kmod-sfc : ALAC2012-2022-038
  • 356186 Amazon Linux Security Advisory for microvm-kernel : ALASMICROVM-KERNEL-4.14-2023-003
  • 356218 Amazon Linux Security Advisory for microvm-kernel : ALASMICROVM-KERNEL-4.14-2023-002
  • 671137 EulerOS Security Update for kernel (EulerOS-SA-2021-2713)
  • 671804 EulerOS Security Update for kernel (EulerOS-SA-2022-1844)
  • 751137 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:1271-1)
  • 751155 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3192-1)
  • 751160 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3179-1)
  • 751163 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3206-1)
  • 751164 SUSE Enterprise Linux Security Update for the Linux Kernel (Live Patch 40 for SLE 12 SP3) (SUSE-SU-2021:3196-1)
  • 751170 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3205-1)
  • 751437 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3876-1)
  • 751441 OpenSUSE Security Update for the Linux Kernel (openSUSE-SU-2021:3876-1)
  • 751451 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3935-1)
  • 751473 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3969-1)
  • 751476 SUSE Enterprise Linux Security Update for the Linux Kernel (SUSE-SU-2021:3972-1)
  • 900294 CBL-Mariner Linux Security Update for kernel 5.10.52.1
  • 900304 CBL-Mariner Linux Security Update for kernel 5.10.57.1
  • 900319 CBL-Mariner Linux Security Update for kernel 5.10.60.1
  • 901372 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (6582-1)
  • 903293 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (5122)
  • 906057 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (5122-1)

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report