CVE-2020-7951 Memory corruption in n/a

High 7.8 Published Updated

Remote attackers can achieve code execution or denial of service in Dota 2 by inviting victims to a malicious gaming server with a crafted map.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2020-7951?

CVE-2020-7951 is a high-severity memory corruption vulnerability in n/a, published on 27 Jan 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

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.

Weakness: CWE-787

Which versions are affected by CVE-2020-7951?

It affects 1 product.

Products include Valvesoftware Dota 2.

How do I fix CVE-2020-7951?

No fix has been published for CVE-2020-7951 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-7951 being exploited?

There is no known exploitation of CVE-2020-7951 in the wild and no public exploit code.

Sources

Also known as GHSA-f5pv-c7hr-3cx2.

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