CVE-2021-38199
6.5 MEDIUMfs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 ser...
Published: 2021-08-08 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 6.5 MEDIUM
- Vector
- CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
| Vendor | Product |
|---|---|
| debian | debian_linux, element_software, hci_bootstrap_os |
| linux | debian_linux, element_software, hci_bootstrap_os |
| netapp | debian_linux, element_software, hci_bootstrap_os |
Description
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-38199
- [Patch]https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4
- [Patch]https://github.com/torvalds/linux/commit/dd99e9f98fbf423ff6d365b37a98e8879170f17c
- [Other]https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html
- [Other]https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
- [Other]https://security.netapp.com/advisory/ntap-20210902-0010/
- [Other]https://www.debian.org/security/2021/dsa-4978
- [Patch]https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4
- [Patch]https://github.com/torvalds/linux/commit/dd99e9f98fbf423ff6d365b37a98e8879170f17c
- [Other]https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html
- [Other]https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
- [Other]https://security.netapp.com/advisory/ntap-20210902-0010/
- [Other]https://www.debian.org/security/2021/dsa-4978
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