Improper Input Validation Affecting kernel-libbpf-static package, versions <0:6.1.59-84.139.amzn2023


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.05% (19th percentile)

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  • Snyk IDSNYK-AMZN2023-KERNELLIBBPFSTATIC-6045696
  • published4 Nov 2023
  • disclosed4 Oct 2023

Introduced: 4 Oct 2023

CVE-2023-39191  (opens in a new tab)
CWE-20  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade Amazon-Linux:2023 kernel-libbpf-static to version 0:6.1.59-84.139.amzn2023 or higher.
This issue was patched in ALAS2023-2023-422.

NVD Description

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

An improper input validation flaw was found in the eBPF subsystem in the Linux kernel. The issue occurs due to a lack of proper validation of dynamic pointers within user-supplied eBPF programs prior to executing them. This may allow an attacker with CAP_BPF privileges to escalate privileges and execute arbitrary code in the context of the kernel.

CVSS Scores

version 3.1