CVE-2023-21155 : What You Need to Know

This CVE record highlights a vulnerability in the BuildSetRadioNode function of protocolmiscbuilder.cpp, potentially leading to an out-of-bounds read due to a missing null check. The impact of this vulnerability could result in local information disclosure without requiring additional execution privileges or user interaction.

Understanding CVE-2023-21155

This section delves deeper into the details surrounding CVE-2023-21155, focusing on the vulnerability itself and its implications.

What is CVE-2023-21155?

The CVE-2023-21155 vulnerability arises from a missing null check in the BuildSetRadioNode function of protocolmiscbuilder.cpp. This oversight could allow an attacker to perform an out-of-bounds read operation, potentially leading to the disclosure of sensitive local information.

The Impact of CVE-2023-21155

The impact of CVE-2023-21155 is significant as it could enable malicious actors to access confidential data stored on the affected system without requiring any additional privileges or user interaction. This could pose a serious threat to user privacy and system security.

Technical Details of CVE-2023-21155

In this section, we will discuss the technical aspects of CVE-2023-21155, including vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in the BuildSetRadioNode function of protocolmiscbuilder.cpp allows for an out-of-bounds read due to a missing null check. This flaw could be exploited by threat actors to access sensitive local information.

Affected Systems and Versions

The vulnerability impacts the Android kernel, specifically affecting versions that utilize this component. Systems running the Android kernel are at risk of exploitation if left unpatched.

Exploitation Mechanism

Attackers can exploit CVE-2023-21155 by leveraging the out-of-bounds read vulnerability in the BuildSetRadioNode function. By exploiting this weakness, they can gain unauthorized access to local information without the need for user interaction.

Mitigation and Prevention

To address CVE-2023-21155 and mitigate the associated risks, specific steps need to be taken promptly. This section outlines immediate actions, long-term security practices, and the importance of patching and updates.

Immediate Steps to Take

Immediate steps to address CVE-2023-21155 include applying relevant security patches or updates provided by the system vendor. Additionally, organizations should monitor for any signs of exploitation and take necessary actions to protect sensitive data.

Long-Term Security Practices

Implementing robust security practices such as regular security audits, threat monitoring, and employee training can help prevent similar vulnerabilities in the future. By prioritizing security measures, organizations can enhance their overall defense against cyber threats.

Patching and Updates

Regularly updating software and systems, especially in response to security advisories like CVE-2023-21155, is crucial for maintaining a secure environment. Timely patching helps in addressing known vulnerabilities and strengthening the overall security posture of the system.