Vulnerability Details : CVE-2020-6018
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.
Published
2020-12-02 01:15:13
Updated
2022-04-12 16:19:59
Vulnerability category: OverflowMemory CorruptionExecute code
Exploit prediction scoring system (EPSS) score for CVE-2020-6018
Probability of exploitation activity in the next 30 days: 0.76%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 81 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2020-6018
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
---|---|---|---|---|---|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST |
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2020-6018
-
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.Assigned by: cve@checkpoint.com (Secondary)
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-6018
-
https://research.checkpoint.com/2020/game-on-finding-vulnerabilities-in-valves-steam-sockets/
Game On - Finding vulnerabilities in Valve’s “Steam Sockets” - Check Point ResearchExploit;Third Party Advisory
-
https://github.com/ValveSoftware/GameNetworkingSockets/commit/bea84e2844b647532a9b7fbc3a6a8989d66e49e3
Check if output buffer is too small. · ValveSoftware/GameNetworkingSockets@bea84e2 · GitHubPatch;Third Party Advisory
Products affected by CVE-2020-6018
- cpe:2.3:a:valvesoftware:game_networking_sockets:*:*:*:*:*:*:*:*