SB2024032236 - openEuler update for microcode_ctl



SB2024032236 - openEuler update for microcode_ctl

Published: March 22, 2024

Security Bulletin ID SB2024032236
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Information disclosure (CVE-ID: CVE-2023-38575)

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to non-transparent sharing of return predictor targets between contexts in some Intel Processors. A local user can gain unauthorized access to sensitive information on the system.


2) Protection Mechanism Failure (CVE-ID: CVE-2023-39368)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient implementation of security measures in the bus lock regulator mechanism. A remote attacker can trick the victim to open a specially crafted file and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.