Improper Input Validation Affecting kernel-rt-modules-extra package, versions <0:5.14.0-284.48.1.rt14.333.el9_2


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.42% (75th percentile)

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  • Snyk IDSNYK-RHEL9-KERNELRTMODULESEXTRA-6196601
  • published26 Jan 2024
  • disclosed29 Sept 2023

Introduced: 29 Sep 2023

CVE-2023-39191  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade RHEL:9 kernel-rt-modules-extra to version 0:5.14.0-284.48.1.rt14.333.el9_2 or higher.
This issue was patched in RHSA-2024:0439.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-modules-extra package and not the kernel-rt-modules-extra package as distributed by RHEL. See How to fix? for RHEL:9 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