SB2024072624 - Red Hat Enterprise Linux 8 update for linux-firmware
Published: July 26, 2024
Breakdown by Severity
- 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.