SB2024072624 - Red Hat Enterprise Linux 8 update for linux-firmware



SB2024072624 - Red Hat Enterprise Linux 8 update for linux-firmware

Published: July 26, 2024

Security Bulletin ID SB2024072624
Severity
Low
Patch available
YES
Number of vulnerabilities 4
Exploitation vector Local access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 4 secuirty vulnerabilities.


1) Improper access control (CVE-ID: CVE-2022-27635)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper access restrictions. A local user can bypass implemented security restrictions and execute arbitrary code with elevated privileges.


2) Improper access control (CVE-ID: CVE-2022-40964)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper access restrictions. A local user can bypass implemented security restrictions and execute arbitrary code with elevated privileges.


3) Protection Mechanism Failure (CVE-ID: CVE-2022-46329)

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to insufficient implementation of security measures. A local user can bypass implemented security restrictions and elevate privileges on the system.


4) Reliance on undefined behavior (CVE-ID: CVE-2023-20592)

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to unexpected behavior of the INVD instruction in some AMD CPUs. A malicious hypervisor can affect cache line write-back behavior of the CPU and modify guest virtual machine (VM) memory.


Remediation

Install update from vendor's website.