CVE-2023-1132 : Vulnerability Insights and Analysis

This CVE-2023-1132 record was published by Silabs on May 18, 2023. The vulnerability affects the Gecko Platform from Silabs, specifically versions 4.2.1 and earlier. The issue stems from compiler removal of buffer clearing in the 'sli_se_driver_key_agreement' function, leading to key material duplication in RAM.

Understanding CVE-2023-1132

This section delves into the details of CVE-2023-1132, outlining the vulnerability and its potential impact on systems utilizing the affected versions of the Silicon Labs Gecko Platform SDK.

What is CVE-2023-1132?

The vulnerability, CVE-2023-1132, arises from the removal of buffer clearing in a specific function within the Silicon Labs Gecko Platform SDK. This omission results in the duplication of key material in RAM, potentially leading to unauthorized access or data compromise.

The Impact of CVE-2023-1132

With a CVSS v3.1 base score of 5.3 (medium severity), CVE-2023-1132 poses a notable risk to affected systems. The high confidentiality impact indicates the potential exposure of sensitive information due to key material duplication, while the low privileges required make it easier for attackers to exploit the vulnerability.

Technical Details of CVE-2023-1132

This section provides a deeper insight into the vulnerability, including its description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in Silicon Labs Gecko Platform SDK versions 4.2.1 and earlier stems from the lack of buffer clearing in the 'sli_se_driver_key_agreement' function. This oversight leads to the duplication of key material in RAM, creating a security risk for the system.

Affected Systems and Versions

The CVE-2023-1132 impacts systems using Silicon Labs Gecko Platform SDK versions 4.2.1 and earlier. Specifically, the vulnerability affects the 'sli_se_driver_key_agreement' function, introducing the risk of key material duplication in RAM.

Exploitation Mechanism

Exploiting CVE-2023-1132 involves taking advantage of the key material duplication in RAM resulting from the compiler's removal of buffer clearing in the 'sli_se_driver_key_agreement' function. This could potentially allow malicious actors to access sensitive data or perform unauthorized actions.

Mitigation and Prevention

To address CVE-2023-1132 and enhance the security of affected systems, certain measures need to be implemented promptly to mitigate the risk and prevent potential exploitation.

Immediate Steps to Take

Organizations using Silicon Labs Gecko Platform SDK versions 4.2.1 and earlier should consider upgrading to a patched version that addresses the vulnerability.
Implement additional security controls to monitor and detect any unauthorized access or suspicious activities related to key material duplication.

Long-Term Security Practices

Regularly review and update security policies and procedures to ensure vulnerabilities like buffer clearing omissions are identified and mitigated promptly.
Conduct periodic security assessments and code reviews to proactively identify and address potential security issues within software applications.

Patching and Updates

Stay informed about security advisories and updates released by Silicon Labs to address CVE-2023-1132.
Prioritize the installation of patches and software updates to eliminate the vulnerability and strengthen the overall security posture of the affected systems.