Incorrect Calculation Affecting kernel-headers package, versions <0:6.1.27-43.48.amzn2023


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (11th percentile)

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  • Snyk IDSNYK-AMZN2023-KERNELHEADERS-5912152
  • published21 Sept 2023
  • disclosed20 Sept 2023

Introduced: 20 Sep 2023

CVE-2023-2163  (opens in a new tab)
CWE-682  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 kernel-headers to version 0:6.1.27-43.48.amzn2023 or higher.
This issue was patched in ALAS2023-2023-179.

NVD Description

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

Incorrect verifier pruning in BPF in Linux Kernel >=5.4 leads to unsafe code paths being incorrectly marked as safe, resulting in arbitrary read/write in kernel memory, lateral privilege escalation, and container escape.

CVSS Scores

version 3.1