CVE-2020-6018 Information

Description

Valve’s Game Networking Sockets prior to version v1.2.0 improperly handles long encrypted messages in function AES_GCM_DecryptContext::Decrypt() when compiled using libsodium leading to a Stack-Based Buffer Overflow and resulting in a memory corruption and possibly even a remote code execution.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://github.com/ValveSoftware/GameNetworkingSockets/commit/bea84e2844b647532a9b7fbc3a6a8989d66e49e3 https://research.checkpoint.com/2020/game-on-finding-vulnerabilities-in-valves-steam-sockets/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8