CVE-2023-1900 : What You Need to Know

This CVE details a vulnerability within the Avira Antivirus software that could allow an attacker with local execution rights to cause an overflow, leading to a denial-of-service situation. The issue was addressed in Endpointprotection.exe version 1.0.2303.633.

Understanding CVE-2023-1900

This section delves into the specifics of CVE-2023-1900, shedding light on the vulnerability, its impact, technical details, and mitigation strategies.

What is CVE-2023-1900?

CVE-2023-1900 is a vulnerability found in the Avira Antivirus network protection feature that could be exploited by an attacker with local execution rights to trigger an overflow, potentially resulting in data corruption on the heap and leading to a denial-of-service scenario.

The Impact of CVE-2023-1900

The impact of this vulnerability is rated as high, with a CVSSv3.1 base score of 7.8. The attack complexity is low, but the availability, confidentiality, and integrity impacts are high. An attacker with low privileges required can exploit this vulnerability locally without user interaction.

Technical Details of CVE-2023-1900

This section provides detailed technical information about the vulnerability, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability in the Avira Antivirus allowed an attacker to cause an overflow leading to data corruption on the heap, resulting in a denial-of-service condition. The issue was resolved in Endpointprotection.exe version 1.0.2303.633.

Affected Systems and Versions

The vulnerability impacts systems running Avira Antivirus with Endpointprotection.exe version prior to 1.0.2303.633 on Windows platforms.

Exploitation Mechanism

An attacker with local execution rights could exploit this vulnerability in Avira Antivirus to trigger an overflow, corrupting heap data and potentially causing a denial-of-service situation.

Mitigation and Prevention

To protect systems from CVE-2023-1900 and similar vulnerabilities, it is crucial to implement immediate steps, adopt long-term security practices, and ensure timely patching and updates.

Immediate Steps to Take

Update Avira Antivirus software to version 1.0.2303.633 or higher.
Monitor and restrict local execution rights to mitigate the risk of exploitation.

Long-Term Security Practices

Regularly update and patch all software to address security vulnerabilities promptly.
Implement robust access control measures to limit the impact of potential threats.

Patching and Updates

Stay informed about security advisories and updates from Avira to address vulnerabilities promptly.
Regularly check for and apply patches and updates to ensure the security of the Avira Antivirus software.