CVE-2020-6019

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Source
https://cve.org/CVERecord?id=CVE-2020-6019
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-6019.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-6019
Published
2020-11-13T16:15:18.463Z
Modified
2026-07-08T20:30:13.395447Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

Valve's Game Networking Sockets prior to version v1.2.0 improperly handles inlined statistics messages in function CConnectionTransportUDPBase::Received_Data(), leading to an exception thrown from libprotobuf and resulting in a crash.

References

Affected packages

Git / github.com/valvesoftware/gamenetworkingsockets

Affected ranges

Type
GIT
Repo
https://github.com/valvesoftware/gamenetworkingsockets
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
5fe10494e27be722d18c443dc70f851541e5d554
Fixed
d944a10808891d202bb1d5e1998de6e0423af678
Database specific 
{
    "cpe": "cpe:2.3:a:valvesoftware:game_networking_sockets:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.2.0"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

1.*
1.0.0
v1.*
v1.1.0

Database specific

vanir_signatures 
[
    {
        "source": "https://github.com/valvesoftware/gamenetworkingsockets/commit/d944a10808891d202bb1d5e1998de6e0423af678",
        "signature_version": "v1",
        "signature_type": "Line",
        "digest": {
            "line_hashes": [
                "180977740885410953083231793349288947850",
                "158827332801809524682340023684164447825",
                "118230938696202721049841602007988561738",
                "147682018950322218072189862423202981273",
                "249060439324792507734855365683807213112",
                "188936255904427941690797892057514420810"
            ],
            "threshold": 0.9
        },
        "deprecated": false,
        "id": "CVE-2020-6019-0821b82c",
        "target": {
            "file": "src/steamnetworkingsockets/clientlib/steamnetworkingsockets_udp.cpp"
        }
    },
    {
        "source": "https://github.com/valvesoftware/gamenetworkingsockets/commit/d944a10808891d202bb1d5e1998de6e0423af678",
        "signature_version": "v1",
        "signature_type": "Function",
        "digest": {
            "function_hash": "73977502484827419243571666738105691618",
            "length": 2154.0
        },
        "deprecated": false,
        "id": "CVE-2020-6019-cd7423ed",
        "target": {
            "function": "CConnectionTransportUDPBase::Received_Data",
            "file": "src/steamnetworkingsockets/clientlib/steamnetworkingsockets_udp.cpp"
        }
    }
]
vanir_signatures_modified 
"2026-07-08T20:30:13Z"
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-6019.json"