CVE-2020-10860 : What You Need to Know

An Arbitrary Memory Address Overwrite vulnerability in the Avast Antivirus before version 20 allows for a Denial of Service attack on the Avast Service (AvastSvc.exe).

Understanding CVE-2020-10860

This CVE identifies a critical vulnerability in Avast Antivirus that can lead to a Denial of Service condition.

What is CVE-2020-10860?

The CVE-2020-10860 vulnerability involves an Arbitrary Memory Address Overwrite issue in the aswAvLog Log Library of Avast Antivirus before version 20, enabling attackers to disrupt the Avast Service.

The Impact of CVE-2020-10860

The exploitation of this vulnerability can result in a Denial of Service attack on the Avast Service, potentially causing system unavailability and disruption of antivirus protection.

Technical Details of CVE-2020-10860

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability lies in an Arbitrary Memory Address Overwrite in the aswAvLog Log Library of Avast Antivirus before version 20, allowing attackers to trigger a Denial of Service condition.

Affected Systems and Versions

Affected Product: Avast Antivirus
Affected Version: Before version 20

Exploitation Mechanism

Attackers can exploit this vulnerability by crafting and executing malicious code to overwrite memory addresses in the aswAvLog Log Library, leading to a Denial of Service of the Avast Service.

Mitigation and Prevention

Protecting systems from CVE-2020-10860 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Avast Antivirus to version 20 or newer to mitigate the vulnerability.
Monitor for any unusual system behavior that could indicate a potential Denial of Service attack.

Long-Term Security Practices

Regularly update antivirus software and security patches to prevent known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Apply security updates and patches provided by Avast to address the Arbitrary Memory Address Overwrite vulnerability and enhance system security.