CVE-2020-6017 Memory corruption in Game Networking Sockets
Heap-based buffer overflow in Valve's Game Networking Sockets allows remote code execution when plain-text messages are enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-6017?
CVE-2020-6017 is a critical memory corruption vulnerability in Game Networking Sockets, published on 3 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Valve's Game Networking Sockets prior to version v1.2.0 improperly handles long unreliable segments in function SNP_ReceiveUnreliableSegment() when configured to support plain-text messages, leading to a Heap-Based Buffer Overflow and resulting in a memory corruption and possibly even a remote code execution.
Which versions are affected by CVE-2020-6017?
It affects 1 product.
Products include Valvesoftware Game Networking Sockets.
How do I fix CVE-2020-6017?
No fix has been published for CVE-2020-6017 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-2020-6017 being exploited?
There is no known exploitation of CVE-2020-6017 in the wild and no public exploit code.
Other vulnerabilities in Game Networking Sockets
Sources
Also known as GHSA-p7jj-vwwf-c644.