CVE-2020-35518

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Source
https://cve.org/CVERecord?id=CVE-2020-35518
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-35518.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2020-35518
Downstream
Related
Published
2021-03-26T17:15:12.280Z
Modified
2026-02-20T16:40:52.315707Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
Summary
[none]
Details

When binding against a DN during authentication, the reply from 389-ds-base will be different whether the DN exists or not. This can be used by an unauthenticated attacker to check the existence of an entry in the LDAP database.

References

Affected packages

Git / github.com/389ds/389-ds-base

Affected ranges

Type
GIT
Repo
https://github.com/389ds/389-ds-base
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
b6aae4d8e7c8a6ddd21646f94fef1bf7f22c3f32
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
cc0f69283abc082488824702dae485b8eae938bc
Introduced
5fc54f4343fca0511f24af29915365a1988a841d
Fixed
6841d693fcec1636cc3ba7a9be58b4e1b276400a
Introduced
cdaa81c5085c3188a5a8e19561cede093a3dd3fd
Fixed
a355b30b213432b7e53035f46ec70c502aadfb36

Affected versions

389-ds-base-1.*
389-ds-base-1.4.4.0
389-ds-base-1.4.4.1
389-ds-base-1.4.4.10
389-ds-base-1.4.4.11
389-ds-base-1.4.4.12
389-ds-base-1.4.4.2
389-ds-base-1.4.4.3
389-ds-base-1.4.4.4
389-ds-base-1.4.4.5
389-ds-base-1.4.4.7
389-ds-base-1.4.4.8
389-ds-base-1.4.4.9
389-ds-base-1.4.5.0
389-ds-base-2.*
389-ds-base-2.0.0
389-ds-base-2.0.0.0
389-ds-base-2.0.1
389-ds-base-2.0.2

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-35518.json"
vanir_signatures 
[
    {
        "target": {
            "file": "ldap/servers/slapd/back-ldbm/ldbm_config.c"
        },
        "digest": {
            "line_hashes": [
                "77052046725761742736191245757834080893",
                "200062147893151783779674741567439343108",
                "316338524811121582645806109786831299266",
                "301003175346272026105771522178948211242"
            ],
            "threshold": 0.9
        },
        "signature_type": "Line",
        "id": "CVE-2020-35518-436b57f3",
        "source": "https://github.com/389ds/389-ds-base/commit/cc0f69283abc082488824702dae485b8eae938bc",
        "deprecated": false,
        "signature_version": "v1"
    },
    {
        "target": {
            "file": "ldap/servers/slapd/dse.c"
        },
        "digest": {
            "line_hashes": [
                "156327268525253698363660899521115683274",
                "335402869101960669245776613554960002091",
                "48679503366445529733574487735975941163",
                "55275383875053882883620881562959351365",
                "97793999284390048575770039265417524602",
                "93437357065529380144791841150808323560",
                "334210813283020886431060458429448003454",
                "295683751000731501741412729082515590555",
                "200895548605128804941227070130969920888",
                "114568757203904273824644200368920260210",
                "283960780581346130140347495791233769035",
                "154052428143839224908335269617999166533"
            ],
            "threshold": 0.9
        },
        "signature_type": "Line",
        "id": "CVE-2020-35518-6668af7b",
        "source": "https://github.com/389ds/389-ds-base/commit/b6aae4d8e7c8a6ddd21646f94fef1bf7f22c3f32",
        "deprecated": false,
        "signature_version": "v1"
    },
    {
        "target": {
            "file": "ldap/servers/slapd/back-ldbm/ldbm_bind.c"
        },
        "digest": {
            "line_hashes": [
                "231900200210085628883299799942067668579",
                "293227023537761690832979670014535727304",
                "529580841501224453670901892392782820",
                "92938755121922726516016927907363779926",
                "119176856061870748709409521201365395736"
            ],
            "threshold": 0.9
        },
        "signature_type": "Line",
        "id": "CVE-2020-35518-6dbc738f",
        "source": "https://github.com/389ds/389-ds-base/commit/b6aae4d8e7c8a6ddd21646f94fef1bf7f22c3f32",
        "deprecated": false,
        "signature_version": "v1"
    },
    {
        "target": {
            "file": "ldap/servers/slapd/result.c",
            "function": "send_ldap_result_ext"
        },
        "digest": {
            "length": 5728.0,
            "function_hash": "161568368649263161676050796206389097096"
        },
        "signature_type": "Function",
        "id": "CVE-2020-35518-92c102ff",
        "source": "https://github.com/389ds/389-ds-base/commit/cc0f69283abc082488824702dae485b8eae938bc",
        "deprecated": false,
        "signature_version": "v1"
    },
    {
        "target": {
            "file": "ldap/servers/slapd/back-ldbm/ldbm_bind.c",
            "function": "ldbm_back_bind"
        },
        "digest": {
            "length": 2174.0,
            "function_hash": "121539299605689041318853093154430367139"
        },
        "signature_type": "Function",
        "id": "CVE-2020-35518-ae816c87",
        "source": "https://github.com/389ds/389-ds-base/commit/b6aae4d8e7c8a6ddd21646f94fef1bf7f22c3f32",
        "deprecated": false,
        "signature_version": "v1"
    },
    {
        "target": {
            "file": "ldap/servers/slapd/result.c"
        },
        "digest": {
            "line_hashes": [
                "93023770981467552284335591659520590179",
                "160087572227559021620709316116632204265",
                "283721859586959455658915352025728779039",
                "189889751970639446926761919471682374906"
            ],
            "threshold": 0.9
        },
        "signature_type": "Line",
        "id": "CVE-2020-35518-b1b7e320",
        "source": "https://github.com/389ds/389-ds-base/commit/cc0f69283abc082488824702dae485b8eae938bc",
        "deprecated": false,
        "signature_version": "v1"
    },
    {
        "target": {
            "file": "ldap/servers/slapd/dse.c",
            "function": "dse_bind"
        },
        "digest": {
            "length": 1488.0,
            "function_hash": "156790754977640553600549957926651256104"
        },
        "signature_type": "Function",
        "id": "CVE-2020-35518-f7fbbd76",
        "source": "https://github.com/389ds/389-ds-base/commit/b6aae4d8e7c8a6ddd21646f94fef1bf7f22c3f32",
        "deprecated": false,
        "signature_version": "v1"
    }
]