Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes iattr::ia_size is a loff_t, so these NFSv3 procedures must be careful to deal with incoming client size values that are larger than s64_max without corrupting the value. Silently capping the value results in storing a different value than the client passed in which is unexpected behavior, so remove the min_t() check in decode_sattr3(). Note that RFC 1813 permits only the WRITE procedure to return NFS3ERR_FBIG. We believe that NFSv3 reference implementations also return NFS3ERR_FBIG when ia_size is too large.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.4.295 |
References
- https://git.kernel.org/stable/c/37f2d2cd8eadddbbd9c7bda327a9393399b2f89bPatch
- https://git.kernel.org/stable/c/72c14aed6838b5d90b4dd926b6a339b34bb02e08Patch
- https://git.kernel.org/stable/c/a231ae6bb50e7c0a9e9efd7b0d10687f1d71b3a3Patch
- https://git.kernel.org/stable/c/a648fdeb7c0e17177a2280344d015dba3fbe3314Patch
- https://git.kernel.org/stable/c/aa9051ddb4b378bd22e72a67bc77b9fc1482c5f0Patch
- https://git.kernel.org/stable/c/37f2d2cd8eadddbbd9c7bda327a9393399b2f89bPatch
- https://git.kernel.org/stable/c/a231ae6bb50e7c0a9e9efd7b0d10687f1d71b3a3Patch
- https://git.kernel.org/stable/c/a648fdeb7c0e17177a2280344d015dba3fbe3314Patch
- https://git.kernel.org/stable/c/aa9051ddb4b378bd22e72a67bc77b9fc1482c5f0Patch
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html
FAQ
What is CVE-2022-48829?
CVE-2022-48829 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes iattr::ia_size is a loff_t, so these NFSv3 procedures must be carefu...
How severe is CVE-2022-48829?
CVE-2022-48829 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-48829?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.