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Ubuntu: (CVE-2021-47168): linux vulnerability

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Ubuntu: (CVE-2021-47168): linux vulnerability

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
03/25/2024
Created
11/21/2024
Added
11/19/2024
Modified
02/11/2025

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.

Solution(s)

  • ubuntu-upgrade-linux
  • ubuntu-upgrade-linux-aws
  • ubuntu-upgrade-linux-aws-5-4
  • ubuntu-upgrade-linux-aws-fips
  • ubuntu-upgrade-linux-aws-hwe
  • ubuntu-upgrade-linux-azure
  • ubuntu-upgrade-linux-azure-4-15
  • ubuntu-upgrade-linux-azure-5-4
  • ubuntu-upgrade-linux-azure-fips
  • ubuntu-upgrade-linux-bluefield
  • ubuntu-upgrade-linux-fips
  • ubuntu-upgrade-linux-gcp
  • ubuntu-upgrade-linux-gcp-4-15
  • ubuntu-upgrade-linux-gcp-5-4
  • ubuntu-upgrade-linux-gcp-fips
  • ubuntu-upgrade-linux-gkeop
  • ubuntu-upgrade-linux-hwe
  • ubuntu-upgrade-linux-hwe-5-4
  • ubuntu-upgrade-linux-kvm
  • ubuntu-upgrade-linux-oracle
  • ubuntu-upgrade-linux-oracle-5-4
  • ubuntu-upgrade-linux-raspi
  • ubuntu-upgrade-linux-raspi-5-4

References

  • https://attackerkb.com/topics/cve-2021-47168
  • CVE - 2021-47168
  • https://git.kernel.org/stable/c/769b01ea68b6c49dc3cde6adf7e53927dacbd3a8
  • https://git.kernel.org/stable/c/945ebef997227ca8c20bad7f8a8358c8ee57a84a
  • https://git.kernel.org/stable/c/9b367fe770b1b80d7bf64ed0d177544a44405f6e
  • https://git.kernel.org/stable/c/9d280ab53df1d4a1043bd7a9e7c6a2f9cfbfe040
  • https://git.kernel.org/stable/c/b287521e9e94bb342ebe5fd8c3fd7db9aef4e6f1
  • https://git.kernel.org/stable/c/d34fb628f6ef522f996205a9e578216bbee09e84
  • https://git.kernel.org/stable/c/e411df81cd862ef3d5b878120b2a2fef0ca9cdb1
  • https://git.kernel.org/stable/c/f299522eda1566cbfbae4b15c82970fc41b03714
  • https://www.cve.org/CVERecord?id=CVE-2021-47168
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