CVE-2020-13775

ZNC 1.8.0 up to 1.8.1-rc1 allows authenticated users to trigger an application crash (with a NULL pointer dereference) if echo-message is not enabled and there is no network.

Database specific

{
    "unresolved_ranges": [
        {
            "source": "CPE_STRING",
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*"
            ],
            "vendor_product": "fedoraproject:fedora",
            "extracted_events": [
                {
                    "introduced": "31"
                },
                {
                    "last_affected": "31"
                },
                {
                    "introduced": "32"
                },
                {
                    "last_affected": "32"
                }
            ]
        }
    ]
}

References

Affected packages

Git / github.com/znc/znc

Affected ranges

Type

GIT

Repo

https://github.com/znc/znc

Events

Introduced

492b4ab00792adbf773379e9b0b781ee4d29567d

Last affected

492b4ab00792adbf773379e9b0b781ee4d29567d

Fixed

2390ad111bde16a78c98ac44572090b33c3bd2d8

Fixed

d229761821da38d984a9e4098ad96842490dc001

Database specific

{
    "cpe": "cpe:2.3:a:znc:znc:1.8.0:*:*:*:*:*:*:*",
    "source": [
        "CPE_STRING",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "1.8.0"
        },
        {
            "last_affected": "1.8.0"
        }
    ]
}

Affected versions

1.*

1.8.0

znc-1.*

znc-1.8.0

Database specific

vanir_signatures

[
    {
        "digest": {
            "length": 1048.0,
            "function_hash": "167904269692328655823236297049711722010"
        },
        "signature_version": "v1",
        "source": "https://github.com/znc/znc/commit/d229761821da38d984a9e4098ad96842490dc001",
        "signature_type": "Function",
        "target": {
            "function": "CClient::OnTextMessage",
            "file": "src/Client.cpp"
        },
        "id": "CVE-2020-13775-68c39034",
        "deprecated": false
    },
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "66497401595510528959044953371277996417",
                "326262900322500493459847737519654946263",
                "3090105072537556030670263174490445171",
                "100969480569315892382633661881648812705"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/znc/znc/commit/d229761821da38d984a9e4098ad96842490dc001",
        "signature_type": "Line",
        "target": {
            "file": "src/Client.cpp"
        },
        "id": "CVE-2020-13775-b48ef002",
        "deprecated": false
    },
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "282026506429154266749841997301203415096",
                "207338783748791260475251416198922182762",
                "339186054012205851326171200838075521853",
                "164159603877650132016191588735563078924",
                "154310451569641065774775021930081256914",
                "158207147809730001147209574032629522899",
                "207377680942250475708722903493820045482",
                "233062993365664671105950193386685885808"
            ]
        },
        "signature_version": "v1",
        "source": "https://github.com/znc/znc/commit/d229761821da38d984a9e4098ad96842490dc001",
        "signature_type": "Line",
        "target": {
            "file": "test/integration/tests/core.cpp"
        },
        "id": "CVE-2020-13775-fc722159",
        "deprecated": false
    }
]

vanir_signatures_modified

"2026-07-08T20:30:24Z"

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13775.json"