Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: NFS: fix an incorrect limit in filelayout_decode_layout() The "sizeof(struct nfs_fh)" is two bytes too large and could lead to memory corruption. It should be NFS_MAXFHSIZE because that's the size of the ->data[] buffer. I reversed the size of the arguments to put the variable on the left.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.37, < 4.4.271 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/769b01ea68b6c49dc3cde6adf7e53927dacbd3a8Patch
- https://git.kernel.org/stable/c/945ebef997227ca8c20bad7f8a8358c8ee57a84aPatch
- https://git.kernel.org/stable/c/9b367fe770b1b80d7bf64ed0d177544a44405f6ePatch
- https://git.kernel.org/stable/c/9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040Patch
- https://git.kernel.org/stable/c/b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1Patch
- https://git.kernel.org/stable/c/d34fb628f6ef522f996205a9e578216bbee09e84Patch
- https://git.kernel.org/stable/c/e411df81cd862ef3d5b878120b2a2fef0ca9cdb1Patch
- https://git.kernel.org/stable/c/f299522eda1566cbfbae4b15c82970fc41b03714Patch
- https://git.kernel.org/stable/c/769b01ea68b6c49dc3cde6adf7e53927dacbd3a8Patch
- https://git.kernel.org/stable/c/945ebef997227ca8c20bad7f8a8358c8ee57a84aPatch
- https://git.kernel.org/stable/c/9b367fe770b1b80d7bf64ed0d177544a44405f6ePatch
- https://git.kernel.org/stable/c/9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040Patch
- https://git.kernel.org/stable/c/b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1Patch
- https://git.kernel.org/stable/c/d34fb628f6ef522f996205a9e578216bbee09e84Patch
- https://git.kernel.org/stable/c/e411df81cd862ef3d5b878120b2a2fef0ca9cdb1Patch
FAQ
What is CVE-2021-47168?
CVE-2021-47168 is a vulnerability with a CVSS score of 9.8 (CRITICAL). In the Linux kernel, the following vulnerability has been resolved: NFS: fix an incorrect limit in filelayout_decode_layout() The "sizeof(struct nfs_fh)" is two bytes too large and could lead to mem...
How severe is CVE-2021-47168?
CVE-2021-47168 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2021-47168?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.