Vulnerability Details CVE-2020-6016
Valve's Game Networking Sockets prior to version v1.2.0 improperly handles unreliable segments with negative offsets in function SNP_ReceiveUnreliableSegment(), leading to a Heap-Based Buffer Underflow and a free() of memory not from the heap, resulting in a memory corruption and probably even a remote code execution.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.1
EPSS Ranking 92.7%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 10.0
References
- https://github.com/ValveSoftware/GameNetworkingSockets/commit/e0c86dcb9139771db3db0cfdb1fb8bef0af19c43
- https://research.checkpoint.com/2020/game-on-finding-vulnerabilities-in-valves-steam-sockets/
- https://github.com/ValveSoftware/GameNetworkingSockets/commit/e0c86dcb9139771db3db0cfdb1fb8bef0af19c43
- https://research.checkpoint.com/2020/game-on-finding-vulnerabilities-in-valves-steam-sockets/
Products affected by CVE-2020-6016
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cpe:2.3:a:valvesoftware:game_networking_sockets:-
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cpe:2.3:a:valvesoftware:game_networking_sockets:1.0.0
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cpe:2.3:a:valvesoftware:game_networking_sockets:1.1.0