What is CVE-2021-38199?

CVE-2021-38199 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.5 out of 10. CVE-2021-38199 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-38199?

CVE-2021-38199 has a CVSS score of 6.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2021-38199?

No patch is currently available for CVE-2021-38199. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-38199 actively exploited?

CVE-2021-38199 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-38199

Medium

fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service (hanging of mounts) by arranging for those servers to be unreachable during trunking detection.

Package Linux Kernel

Published 2021-08-08

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

6.5

out of 10

Medium

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

References

The following references provide additional information about CVE-2021-38199 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
Security
https://security.netapp.com/advisory/ntap-20210902-0010/

Third Party Advisory
Debian Security
https://www.debian.org/security/2021/dsa-4978

Third Party Advisory
Kernel patch commit
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/dd99e9f98fbf423ff6d365b37a98e8879170f17c
Patch

Details

CVE ID CVE-2021-38199

Severity Medium

CVSS score 6.5 / 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-2021-38199?

CVE-2021-38199 is a Medium severity Linux kernel vulnerability with a CVSS score of 6.5 out of 10 . CVE-2021-38199 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-38199?

CVE-2021-38199 has a CVSS score of 6.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2021-38199?

No patch is currently available for CVE-2021-38199. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-38199 actively exploited?

No — CVE-2021-38199 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.