Access of Resource Using Incompatible Type ('Type Confusion') Affecting kernel-core package, versions <0:4.18.0-372.46.1.el8_6


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (11th percentile)

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  • Snyk IDSNYK-RHEL8-KERNELCORE-5716279
  • published1 Jun 2023
  • disclosed24 Apr 2019

Introduced: 24 Apr 2019

CVE-2023-3022  (opens in a new tab)
CWE-843  (opens in a new tab)

How to fix?

Upgrade RHEL:8 kernel-core to version 0:4.18.0-372.46.1.el8_6 or higher.
This issue was patched in RHSA-2023:1130.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-core package and not the kernel-core package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A flaw was found in the IPv6 module of the Linux kernel. The arg.result was not used consistently in fib6_rule_lookup, sometimes holding rt6_info and other times fib6_info. This was not accounted for in other parts of the code where rt6_info was expected unconditionally, potentially leading to a kernel panic in fib6_rule_suppress.

CVSS Scores

version 3.1