Improper Access Control Affecting kernel-headers package, versions <0:4.18.0-147.24.2.el8_1


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-RHEL8-KERNELHEADERS-3938613
  • published26 Jul 2021
  • disclosed19 Aug 2019

Introduced: 19 Aug 2019

CVE-2019-20908  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade RHEL:8 kernel-headers to version 0:4.18.0-147.24.2.el8_1 or higher.
This issue was patched in RHSA-2020:3222.

NVD Description

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

An issue was discovered in drivers/firmware/efi/efi.c in the Linux kernel before 5.4. Incorrect access permissions for the efivar_ssdt ACPI variable could be used by attackers to bypass lockdown or secure boot restrictions, aka CID-1957a85b0032.

CVSS Scores

version 3.1