CVE-2025-64335

Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In versions from 8.0.0 to before 8.0.2, a NULL dereference can occur when the entropy keyword is used in conjunction with base64_data. This issue has been patched in version 8.0.2. A workaround involves disabling rules that use entropy in conjunction with base64_data.

Database specific

{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/64xxx/CVE-2025-64335.json"
}

References

Affected packages

Git / github.com/oisf/suricata

Affected ranges

Type

GIT

Repo

https://github.com/oisf/suricata

Events

Introduced

9956286fb89f9cad9e9f95b99dc751f8666617b7

Fixed

79db7b1ad444c76530c6eac8702c5e01b7c24a56

Fixed

c935f08cd988600fd0a4f828a585b181dd5de012

Database specific

Show details

{
    "cpe": "cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "8.0.0"
        },
        {
            "fixed": "8.0.2"
        }
    ],
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ]
}

Affected versions

suricata-8.*

suricata-8.0.0

suricata-8.0.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-64335.json"

vanir_signatures

[
    {
        "deprecated": false,
        "digest": {
            "function_hash": "124286653467856063907557207732730547021",
            "length": 707
        },
        "id": "CVE-2025-64335-30eac64e",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/oisf/suricata/commit/c935f08cd988600fd0a4f828a585b181dd5de012",
        "target": {
            "file": "src/detect-entropy.c",
            "function": "DetectEntropySetup"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "279499821950713529137027309076539867864",
                "164367828274321763679754641100102308498",
                "246057539159847792616617825525417229831",
                "69948337898303523971131048810598628249",
                "250096358758893899753774649767546016008"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2025-64335-c82e58f2",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/oisf/suricata/commit/c935f08cd988600fd0a4f828a585b181dd5de012",
        "target": {
            "file": "src/detect-entropy.c"
        }
    }
]

vanir_signatures_modified

"2026-08-12T10:47:16Z"