CVE-2025-29917

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. The bytes setting in the decode_base64 keyword is not properly limited. Due to this, signatures using the keyword and setting can cause large memory allocations of up to 4 GiB per thread. This vulnerability is fixed in 7.0.9.

Database specific

{
    "cwe_ids": [
        "CWE-770"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/29xxx/CVE-2025-29917.json"
}

References

Affected packages

Git / github.com/oisf/suricata

Affected ranges

Type

GIT

Repo

https://github.com/oisf/suricata

Events

Introduced

Fixed

76729e42663da010d6fcc4d13d38215344853a23

Fixed

32d0bd2bbb4d486623dec85a94952fde2515f2f0

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "7.0.9"
        }
    ]
}

Affected versions

suricata-0.*

suricata-0.8.2

suricata-1.*

suricata-1.0.0

suricata-1.0.1

suricata-1.0.2

suricata-1.1

suricata-1.1beta1

suricata-1.1beta2

suricata-1.1beta3

suricata-1.1rc1

suricata-1.2

suricata-1.2.1

suricata-1.2beta1

suricata-1.2rc1

suricata-1.3

suricata-1.3.1

suricata-1.3beta1

suricata-1.3beta2

suricata-1.3rc1

suricata-1.4

suricata-1.4beta1

suricata-1.4beta2

suricata-1.4beta3

suricata-1.4rc1

suricata-2.*

suricata-2.0

suricata-2.0.1

suricata-2.0.1rc1

suricata-2.0.2

suricata-2.0beta1

suricata-2.0beta2

suricata-2.0rc1

suricata-2.0rc2

suricata-2.0rc3

suricata-2.1beta1

suricata-2.1beta2

suricata-2.1beta3

suricata-2.1beta4

suricata-3.*

suricata-3.0

suricata-3.0.1

suricata-3.0.1RC1

suricata-3.0RC1

suricata-3.0RC2

suricata-3.0RC3

suricata-3.1

suricata-3.1.1

suricata-3.1.2

suricata-3.1RC1

suricata-3.2

suricata-3.2.1

suricata-3.2RC1

suricata-3.2beta1

suricata-4.*

suricata-4.0.0

suricata-4.0.0-beta1

suricata-4.0.0-rc1

suricata-4.0.0-rc2

suricata-4.0.1

suricata-4.1.0

suricata-4.1.0-beta1

suricata-4.1.0-rc1

suricata-4.1.0-rc2

suricata-4.1.1

suricata-4.1.2

suricata-5.*

suricata-5.0.0

suricata-5.0.0-beta1

suricata-5.0.0-rc1

suricata-5.0.1

suricata-6.*

suricata-6.0.0

suricata-6.0.0-beta1

suricata-6.0.0-rc1

suricata-6.0.1

suricata-7.*

suricata-7.0.0

suricata-7.0.0-beta1

suricata-7.0.0-rc1

suricata-7.0.0-rc2

suricata-7.0.1

suricata-7.0.2

suricata-7.0.3

suricata-7.0.4

suricata-7.0.5

suricata-7.0.6

suricata-7.0.7

suricata-7.0.8

Database specific

vanir_signatures

[
    {
        "deprecated": false,
        "signature_version": "v1",
        "id": "CVE-2025-29917-77ec8bec",
        "signature_type": "Line",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "189421719974315751838859132789865459614",
                "294672274746278775186855985236970094708",
                "190669618789959449988544376648605744403",
                "7920696625455725993384654991306365050"
            ]
        },
        "source": "https://github.com/oisf/suricata/commit/32d0bd2bbb4d486623dec85a94952fde2515f2f0",
        "target": {
            "file": "src/detect.h"
        }
    },
    {
        "deprecated": false,
        "signature_version": "v1",
        "id": "CVE-2025-29917-9cc4035d",
        "signature_type": "Function",
        "digest": {
            "length": 1227.0,
            "function_hash": "232755963883004649895032632981425922514"
        },
        "source": "https://github.com/oisf/suricata/commit/32d0bd2bbb4d486623dec85a94952fde2515f2f0",
        "target": {
            "file": "src/detect-base64-decode.c",
            "function": "DetectBase64DecodeSetup"
        }
    },
    {
        "deprecated": false,
        "signature_version": "v1",
        "id": "CVE-2025-29917-e6598b66",
        "signature_type": "Line",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "168182328950497658403615021200728663158",
                "219234331492877935702875838095868410078",
                "152525596325092184644409540382910658830",
                "312110448617301294738619771795260245823",
                "241435129762732485718389001493154533914",
                "44298442086578956528230499043431430452",
                "17601081206491412871060470683399231312",
                "112408054612585185381966532287283624928",
                "229087281927402615619599840029604442246",
                "164810984654049595857288016917918350209",
                "122670938998780379672973000527169989905",
                "244315139236209143471186151701520036779",
                "252127273006686740283851751945954304088",
                "86801871989252870801612645202581012565",
                "299387663313914633045737175865938067862",
                "83626186166473281872438365016741098519",
                "181943447649642966393712546098218198321",
                "227772299988387425361447049014739641253",
                "241051033123700618247491237766782781876",
                "65349080781017170153556208443032654683",
                "323701859524860142763126954319967690031",
                "244378286494388825793293833025669465232",
                "101239445382149770450096455649738027692",
                "55953206905990514584460094469365783521",
                "79454526425828927057055879326635708296",
                "141759850134175578861670078739666942251",
                "154365056806256413520202161460343852313"
            ]
        },
        "source": "https://github.com/oisf/suricata/commit/32d0bd2bbb4d486623dec85a94952fde2515f2f0",
        "target": {
            "file": "src/detect-base64-decode.c"
        }
    }
]

source

"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-29917.json"

vanir_signatures_modified

"2026-04-15T10:47:20Z"