Out-of-bounds Read Affecting kernel package, versions <0:5.15.72-43.134.amzn2022


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (5th percentile)

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  • Snyk IDSNYK-AMZN2022-KERNEL-3043607
  • published14 Oct 2022
  • disclosed9 Sept 2022

Introduced: 9 Sep 2022

CVE-2022-2905  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2022 kernel to version 0:5.15.72-43.134.amzn2022 or higher.
This issue was patched in ALAS2022-2022-150.

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:2022 relevant fixed versions and status.

An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map. This flaw allows a local user to gain unauthorized access to data.

CVSS Scores

version 3.1