CVE-2024-26973 Affecting kernel package, versions <0:6.1.84-99.169.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-AMZN2023-KERNEL-8495576
  • published11 Dec 2024
  • disclosed1 May 2024

Introduced: 1 May 2024

CVE-2024-26973  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 kernel to version 0:6.1.84-99.169.amzn2023 or higher.
This issue was patched in ALAS2023-2024-696.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

fat: fix uninitialized field in nostale filehandles

When fat_encode_fh_nostale() encodes file handle without a parent it stores only first 10 bytes of the file handle. However the length of the file handle must be a multiple of 4 so the file handle is actually 12 bytes long and the last two bytes remain uninitialized. This is not great at we potentially leak uninitialized information with the handle to userspace. Properly initialize the full handle length.

CVSS Scores

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