Out-of-bounds Read Affecting kernel-tools package, versions <0:4.14.268-205.500.amzn2


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (15th percentile)

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  • Snyk IDSNYK-AMZN2-KERNELTOOLS-7678872
  • published14 Aug 2024
  • disclosed20 Jun 2024

Introduced: 20 Jun 2024

CVE-2021-47620  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel-tools to version 0:4.14.268-205.500.amzn2 or higher.
This issue was patched in ALAS2-2022-1761.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-tools package and not the kernel-tools 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:

Bluetooth: refactor malicious adv data check

Check for out-of-bound read was being performed at the end of while num_reports loop, and would fill journal with false positives. Added check to beginning of loop processing so that it doesn't get checked after ptr has been advanced.

CVSS Scores

version 3.1