Improper Access Control Affecting kernel-rt-debug-core package, versions <0:4.18.0-193.14.3.rt13.67.el8_2


Severity

Recommended
0.0
medium
0
10

Based on CentOS security rating.

Threat Intelligence

EPSS
0.05% (20th percentile)

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  • Snyk IDSNYK-CENTOS8-KERNELRTDEBUGCORE-2045606
  • 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 Centos:8 kernel-rt-debug-core to version 0:4.18.0-193.14.3.rt13.67.el8_2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-core package and not the kernel-rt-debug-core package as distributed by Centos. See How to fix? for Centos: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