CVE-2022-20785 : What You Need to Know

This article discusses the ClamAV HTML Scanning Memory Leak Vulnerability affecting Cisco products, highlighting its impact, technical details, and mitigation strategies.

Understanding CVE-2022-20785

The ClamAV HTML Scanning Memory Leak Vulnerability impacting Cisco products was disclosed in April 2022, involving a denial of service risk.

What is CVE-2022-20785?

The vulnerability in the ClamAV scanning library versions 0.103.5 and earlier and 0.104.2 and earlier allows remote attackers to trigger a denial of service on affected devices.

The Impact of CVE-2022-20785

The vulnerability could be exploited by unauthenticated remote attackers, potentially leading to denial of service conditions on vulnerable devices.

Technical Details of CVE-2022-20785

The vulnerability lies in the HTML file parser of Clam AntiVirus (ClamAV) versions 0.104.0 through 0.104.2 and LTS version 0.103.5 and older.

Vulnerability Description

The HTML Scanning Memory Leak flaw in ClamAV versions poses a high availability impact with a CVSS base score of 7.5.

Affected Systems and Versions

Cisco AMP for Endpoints is among the affected products, with specific vulnerable versions detailed in the advisory.

Exploitation Mechanism

As per the Cisco Product Security Incident Response Team, no reported public exploits or incidents related to this CVE have been identified.

Mitigation and Prevention

Effective security measures can mitigate the risks associated with CVE-2022-20785.

Immediate Steps to Take

Organizations are advised to follow the recommendations provided by Cisco and apply relevant security patches promptly.

Long-Term Security Practices

Regular security updates, threat monitoring, and network segmentation can enhance overall security posture.

Patching and Updates

Ensuring that ClamAV libraries are up to date and implementing security best practices are crucial in preventing exploitation of this vulnerability.