CVE-2021-25492 : Vulnerability Insights and Analysis

A buffer overflow vulnerability in the libSPenBase library of Samsung Notes prior to version 4.3.02.61 could allow an out-of-bounds read attack.

Understanding CVE-2021-25492

This CVE identifies a lack of boundary checking in a specific library of Samsung Notes, potentially enabling unauthorized access to sensitive information.

What is CVE-2021-25492?

The vulnerability in the libSPenBase library of Samsung Notes, before version 4.3.02.61, fails to adequately check the boundaries of a buffer, which may result in an out-of-bounds read access.

The Impact of CVE-2021-25492

With a CVSS base score of 7.3, this high severity vulnerability poses a threat to affected systems by allowing an attacker to read sensitive data beyond the allocated buffer limits.

Technical Details of CVE-2021-25492

This section outlines the specifics of the vulnerability affecting Samsung Notes.

Vulnerability Description

The vulnerability arises due to the lack of proper boundary checks in the libSPenBase library, leading to the potential for an out-of-bounds read.

Affected Systems and Versions

Samsung Notes versions prior to 4.3.02.61 are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this vulnerability locally with low complexity, resulting in a high impact on accessibility and availability.

Mitigation and Prevention

To safeguard systems from CVE-2021-25492, immediate action and long-term security practices are crucial.

Immediate Steps to Take

Users should update Samsung Notes to version 4.3.02.61 or newer to mitigate the risk of exploitation.

Long-Term Security Practices

Employing secure coding practices, regular security assessments, and staying informed about potential vulnerabilities can enhance overall system security.

Patching and Updates

Regularly applying security patches and updates provided by Samsung Mobile is essential to address known vulnerabilities and enhance system defenses.