Improper Access Control Affecting kernel-rt-debug-modules-extra 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)

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 Learn

Learn about Improper Access Control vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-CENTOS8-KERNELRTDEBUGMODULESEXTRA-2045714
  • 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-modules-extra 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-modules-extra package and not the kernel-rt-debug-modules-extra 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