Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.13.4 |
| Netapp | Hci Bootstrap Os | - |
| Netapp | Hci Compute Node | - |
| Netapp | Hci Management Node | - |
| Netapp | Solidfire | - |
| Netapp | Element Software | - |
| Netapp | Hci Storage Node | - |
| Debian | Debian Linux | 9.0 |
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4Mailing ListPatchVendor Advisory
- https://github.com/torvalds/linux/commit/dd99e9f98fbf423ff6d365b37a98e8879170f17PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/10/msg00010.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20210902-0010/Third Party Advisory
- https://www.debian.org/security/2021/dsa-4978Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4Mailing ListPatchVendor Advisory
- https://github.com/torvalds/linux/commit/dd99e9f98fbf423ff6d365b37a98e8879170f17PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/10/msg00010.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20210902-0010/Third Party Advisory
- https://www.debian.org/security/2021/dsa-4978Third Party Advisory
FAQ
What is CVE-2021-38199?
CVE-2021-38199 is a vulnerability with a CVSS score of 6.5 (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 arrang...
How severe is CVE-2021-38199?
CVE-2021-38199 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-38199?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Netapp Hci Bootstrap Os, Netapp Hci Compute Node, Netapp Hci Management Node, Netapp Solidfire.