Information Exposure Affecting kernel-debug-modules package, versions <0:4.18.0-80.1.2.el8_0


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating

    Threat Intelligence

    EPSS
    0.08% (35th percentile)

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  • Snyk ID SNYK-RHEL8-KERNELDEBUGMODULES-4361979
  • published 26 Jul 2021
  • disclosed 14 May 2019

How to fix?

Upgrade RHEL:8 kernel-debug-modules to version 0:4.18.0-80.1.2.el8_0 or higher.
This issue was patched in RHSA-2019:1167.

NVD Description

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

Microarchitectural Fill Buffer Data Sampling (MFBDS): Fill buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf

References