CVE-2022-48829

MEDIUM EPSS 16.6%
Published Jul 16, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jul 16, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

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 Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
16.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel* <5.4.295
linuxlinux_kernel*≥5.5  –  <5.10.220
linuxlinux_kernel*≥5.11  –  <5.15.24
linuxlinux_kernel*≥5.16  –  <5.16.10
linuxlinux_kernel5.17any
linuxlinux_kernel5.17any
linuxlinux_kernel5.17any

References 7

  • cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-265688.html
  • cert-portal.siemens.com https://cert-portal.siemens.com/productcert/html/ssa-355557.html
  • git.kernel.org https://git.kernel.org/stable/c/37f2d2cd8eadddbbd9c7bda327a9393399b2f89b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/72c14aed6838b5d90b4dd926b6a339b34bb02e08
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a231ae6bb50e7c0a9e9efd7b0d10687f1d71b3a3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a648fdeb7c0e17177a2280344d015dba3fbe3314
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/aa9051ddb4b378bd22e72a67bc77b9fc1482c5f0
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/37f2d2cd8eadddbbd9c7bda327a9393399b2f89b
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/72c14aed6838b5d90b4dd926b6a339b34bb02e08
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a231ae6bb50e7c0a9e9efd7b0d10687f1d71b3a3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a648fdeb7c0e17177a2280344d015dba3fbe3314
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/aa9051ddb4b378bd22e72a67bc77b9fc1482c5f0
    Patch