Input validation error in Dota 2 - CVE-2020-9005
Published: February 18, 2020
Vulnerability identifier: #VU25425
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-9005
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Valve Software
Affected software:
Dota 2
Dota 2
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack or execute arbitrary code.
The vulnerability exists due to insufficient validation of user-supplied input in the "meshsystem.dll". A remote attacker can create a gaming server, invite a victim to this server, because a crafted map is mishandled during a vulnerable "GetValue" function call and execute arbitrary code or cause a denial of service condition on the target system.
How to mitigate CVE-2020-9005
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.