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

Fixed

5fe10494e27be722d18c443dc70f851541e5d554

Fixed

d944a10808891d202bb1d5e1998de6e0423af678

Database specific

{
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.2.0"
        }
    ],
    "cpe": "cpe:2.3:a:valvesoftware:game_networking_sockets:*:*:*:*:*:*:*:*"
}

Affected versions

1.*

1.0.0

v1.*

v1.1.0

Database specific

vanir_signatures_modified

"2026-07-08T20:30:13Z"

vanir_signatures

[
    {
        "signature_version": "v1",
        "target": {
            "file": "src/steamnetworkingsockets/clientlib/steamnetworkingsockets_udp.cpp"
        },
        "id": "CVE-2020-6019-0821b82c",
        "signature_type": "Line",
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "180977740885410953083231793349288947850",
                "158827332801809524682340023684164447825",
                "118230938696202721049841602007988561738",
                "147682018950322218072189862423202981273",
                "249060439324792507734855365683807213112",
                "188936255904427941690797892057514420810"
            ]
        },
        "source": "https://github.com/valvesoftware/gamenetworkingsockets/commit/d944a10808891d202bb1d5e1998de6e0423af678"
    },
    {
        "signature_version": "v1",
        "target": {
            "file": "src/steamnetworkingsockets/clientlib/steamnetworkingsockets_udp.cpp",
            "function": "CConnectionTransportUDPBase::Received_Data"
        },
        "id": "CVE-2020-6019-cd7423ed",
        "signature_type": "Function",
        "deprecated": false,
        "digest": {
            "function_hash": "73977502484827419243571666738105691618",
            "length": 2154.0
        },
        "source": "https://github.com/valvesoftware/gamenetworkingsockets/commit/d944a10808891d202bb1d5e1998de6e0423af678"
    }
]

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-6019.json"