Incomplete Cleanup Affecting kernel-rt-core package, versions <0:4.18.0-305.65.1.rt7.137.el8_4


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-RHEL8-KERNELRTCORE-4257198
  • published10 Aug 2022
  • disclosed14 Jun 2022

Introduced: 14 Jun 2022

CVE-2022-21123  (opens in a new tab)
CWE-459  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade RHEL:8 kernel-rt-core to version 0:4.18.0-305.65.1.rt7.137.el8_4 or higher.
This issue was patched in RHSA-2022:6991.

NVD Description

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

Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

References

CVSS Scores

version 3.1