Resource Injection Affecting kernel-livepatch-4.14.238-182.421 package, versions <0:1.0-0.amzn2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (16th percentile)

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  • Snyk IDSNYK-AMZN2-KERNELLIVEPATCH414238182421-7678762
  • published14 Aug 2024
  • disclosed25 Mar 2024

Introduced: 25 Mar 2024

CVE-2021-47168  (opens in a new tab)
CWE-99  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel-livepatch-4.14.238-182.421 to version 0:1.0-0.amzn2 or higher.
This issue was patched in ALAS2-2021-1685.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-4.14.238-182.421 package and not the kernel-livepatch-4.14.238-182.421 package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

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 Scores

version 3.1