CVE-2022-48829

CRITICAL

Linux Kernel < 5.4.295 - Integer Overflow in NFSv3 SETATTR/CREATE

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 9.1
EPSS 0.0065
EPSS Percentile 47.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (18)
linux/Kernel 2.6.12 - 5.4.295linux
linux/Kernel 5.11.0 - 5.15.24linux
linux/Kernel 5.16.0 - 5.16.10linux
linux/Kernel 5.5.0 - 5.10.220linux
Linux/Linux < 2.6.12
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 37f2d2cd8eadddbbd9c7bda327a9393399b2f89b
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - 72c14aed6838b5d90b4dd926b6a339b34bb02e08
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - a231ae6bb50e7c0a9e9efd7b0d10687f1d71b3a3
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - a648fdeb7c0e17177a2280344d015dba3fbe3314
Linux/Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 - aa9051ddb4b378bd22e72a67bc77b9fc1482c5f0
... and 8 more
Published Jul 16, 2024
Tracked Since Feb 18, 2026