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.

CVSS v3 9.8 CRITICAL
CVSS v2.0 10.0 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

10.0^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:C/I:C/A:C

Exploitability : 10.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/ValveSoftware/GameNetworkingSockets/commit/e0c86dcb9139771db3db0cfdb1fb8bef0af19c43	Patch Third Party Advisory
https://research.checkpoint.com/2020/game-on-finding-vulnerabilities-in-valves-steam-sockets/	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:valvesoftware:game_networking_sockets:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-11-18 15:15

Updated : 2024-02-28 18:08

NVD link : CVE-2020-6016

Mitre link : CVE-2020-6016

CVE.ORG link : CVE-2020-6016

JSON object : View

Products Affected

valvesoftware

game_networking_sockets

CWE

CWE-787

Out-of-bounds Write

CWE-590

Free of Memory not on the Heap

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