CVE-2019-6155 : What You Need to Know

A potential security flaw has been identified in the SMI handler of several versions of BIOS used in specific legacy IBM System x and IBM BladeCenter systems, potentially leading to a denial of service.

Understanding CVE-2019-6155

This CVE involves a vulnerability in the BIOS of certain IBM systems that could result in a denial of service.

What is CVE-2019-6155?

CVE-2019-6155 is a vulnerability found in the SMI handler of various BIOS versions used in specific legacy IBM System x and IBM BladeCenter systems.

The Impact of CVE-2019-6155

The vulnerability has a CVSS base score of 4.1, with a medium severity rating. It can lead to a denial of service attack with high availability impact.

Technical Details of CVE-2019-6155

This section provides more technical insights into the vulnerability.

Vulnerability Description

The flaw exists in the SMI handler of BIOS versions in certain IBM System x and IBM BladeCenter systems, allowing for a denial of service.

Affected Systems and Versions

Product: System x BIOS
Vendor: IBM
Versions: Various
Product: BladeCenter BIOS
Vendor: IBM
Versions: Various

Exploitation Mechanism

Attack Complexity: High
Attack Vector: Local
Privileges Required: High
Availability Impact: High
Scope: Unchanged

Mitigation and Prevention

To address CVE-2019-6155, follow these steps:

Immediate Steps to Take

Monitor vendor security advisories for patches
Implement BIOS updates from IBM
Apply security best practices for BIOS protection

Long-Term Security Practices

Regularly update BIOS versions
Conduct security assessments for BIOS vulnerabilities
Implement network security measures to mitigate potential attacks

Patching and Updates

Check IBM's official support page for patches and updates
Apply recommended security patches promptly