CVE-2021-25682 : Vulnerability Insights and Analysis

A detailed overview of CVE-2021-25682 highlighting the impact, technical details, and mitigation strategies.

Understanding CVE-2021-25682

This section provides insights into the vulnerability discovered in 'apport' affecting versions less than 2.20.1-0ubuntu2.30, 2.20.9-0ubuntu7.23, 2.20.11-0ubuntu27.16, and 2.20.11-0ubuntu50.5.

What is CVE-2021-25682?

CVE-2021-25682 involves the improper parsing of the /proc/pid/status file by the get_pid_info() function in 'apport'.

The Impact of CVE-2021-25682

With a CVSS v3.1 base score of 8.8, this vulnerability has a high impact on confidentiality, integrity, and availability of affected systems. The attack vector is local and requires low privileges.

Technical Details of CVE-2021-25682

Exploring the specifics of the vulnerability in 'apport'.

Vulnerability Description

The get_pid_info() function does not correctly parse the /proc/pid/status file, leading to a security loophole.

Affected Systems and Versions

Versions of 'apport' prior to 2.20.1-0ubuntu2.30, 2.20.9-0ubuntu7.23, 2.20.11-0ubuntu27.16, and 2.20.11-0ubuntu50.5 are impacted by this vulnerability.

Exploitation Mechanism

The vulnerability can be exploited locally with low privileges, posing a threat to confidentiality and integrity.

Mitigation and Prevention

Guidelines to address and prevent the CVE-2021-25682 vulnerability.

Immediate Steps to Take

Users are advised to apply security patches promptly and monitor for any signs of exploitation.

Long-Term Security Practices

Implement robust input validation mechanisms and maintain updated security configurations to mitigate similar risks.

Patching and Updates

Keep 'apport' updated with the latest patches and security releases to address this vulnerability effectively.