CVE-2020-7951 Explained : Impact and Mitigation

meshsystem.dll in Valve Dota 2 before 7.23e allows remote attackers to achieve code execution or denial of service by creating a gaming server and inviting a victim to this server, because a crafted map is affected by memory corruption.

Understanding CVE-2020-7951

This CVE involves a vulnerability in meshsystem.dll in Valve Dota 2 that can be exploited by remote attackers to execute code or cause denial of service.

What is CVE-2020-7951?

The CVE-2020-7951 vulnerability in meshsystem.dll in Valve Dota 2 allows attackers to exploit memory corruption in a crafted map when inviting victims to a gaming server.

The Impact of CVE-2020-7951

The vulnerability can lead to remote code execution or denial of service attacks, posing a significant threat to affected systems.

Technical Details of CVE-2020-7951

Vulnerability Description

Vulnerability in meshsystem.dll in Valve Dota 2 before version 7.23e
Allows remote attackers to achieve code execution or denial of service

Affected Systems and Versions

Product: Valve Dota 2
Version: Before 7.23e

Exploitation Mechanism

Attackers create a gaming server and invite victims to exploit the crafted map's memory corruption.

Mitigation and Prevention

Immediate Steps to Take

Update Valve Dota 2 to version 7.23e or later
Avoid joining unknown gaming servers

Long-Term Security Practices

Regularly update software and games to patch vulnerabilities
Educate users on safe gaming practices

Patching and Updates

Valve has released version 7.23e to address the vulnerability