What is CVE-2021-38198?

CVE-2021-38198 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2021-38198 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-38198?

CVE-2021-38198 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2021-38198?

No patch is currently available for CVE-2021-38198. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-38198 actively exploited?

CVE-2021-38198 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-38198

Medium

arch/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.

Package Linux Kernel

Published 2021-08-08

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

References

The following references provide additional information about CVE-2021-38198 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Debian Security
https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html

Mailing List Third Party Advisory
Debian Security
https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html

Mailing List Third Party Advisory
Kernel patch commit
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.11
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/b1bd5cba3306691c771d558e94baa73e8b0b96b7
Patch

Details

CVE ID CVE-2021-38198

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2021-08-08

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-38198?

CVE-2021-38198 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2021-38198 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-38198?

CVE-2021-38198 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2021-38198?

No patch is currently available for CVE-2021-38198. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-38198 actively exploited?

No — CVE-2021-38198 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.