CVE-2017-3730

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Source
https://nvd.nist.gov/vuln/detail/CVE-2017-3730
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2017-3730.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2017-3730
Downstream
Published
2017-05-04T19:29:00Z
Modified
2025-10-15T08:59:22.652833Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

In OpenSSL 1.1.0 before 1.1.0d, if a malicious server supplies bad parameters for a DHE or ECDHE key exchange then this can result in the client attempting to dereference a NULL pointer leading to a client crash. This could be exploited in a Denial of Service attack.

References

Affected packages

Git / github.com/openssl/openssl

Affected ranges

Type
GIT
Repo
https://github.com/openssl/openssl
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
efbe126e3ebb9123ac9d058aa2bb044261342aaa

Affected versions

Other

BEFORE_engine
OpenSSL_0_9_1c
OpenSSL_0_9_2b
OpenSSL_0_9_3
OpenSSL_0_9_3a
OpenSSL_0_9_3beta2
OpenSSL_0_9_4
OpenSSL_0_9_5a
OpenSSL_0_9_5a-beta1
OpenSSL_0_9_5a-beta2
OpenSSL_0_9_5beta1
OpenSSL_0_9_5beta2
OpenSSL_0_9_6-beta3
OpenSSL_1_1_0
OpenSSL_1_1_0-pre1
OpenSSL_1_1_0-pre2
OpenSSL_1_1_0-pre3
OpenSSL_1_1_0-pre4
OpenSSL_1_1_0-pre5
OpenSSL_1_1_0-pre6
OpenSSL_1_1_0a
OpenSSL_1_1_0b
OpenSSL_1_1_0c
master-post-auto-reformat
master-post-reformat
master-pre-auto-reformat
master-pre-reformat

Database specific

vanir_signatures

[
    {
        "signature_version": "v1",
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/efbe126e3ebb9123ac9d058aa2bb044261342aaa",
        "id": "CVE-2017-3730-1aad85c3",
        "target": {
            "function": "tls_construct_cke_ecdhe",
            "file": "ssl/statem/statem_clnt.c"
        },
        "deprecated": false,
        "digest": {
            "function_hash": "257890200851280660739288133489084953939",
            "length": 942.0
        }
    },
    {
        "signature_version": "v1",
        "signature_type": "Line",
        "source": "https://github.com/openssl/openssl/commit/efbe126e3ebb9123ac9d058aa2bb044261342aaa",
        "id": "CVE-2017-3730-68fc7cf3",
        "target": {
            "file": "ssl/statem/statem_clnt.c"
        },
        "deprecated": false,
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "11913848747542421415906338359746620769",
                "287977064637751600933892521007570061603",
                "75632844330391608306880641979290274794",
                "72672834426414620024176760786350314603",
                "22420263237889046951604396148376714523",
                "74913937599607707084124611264251187820",
                "17205899439547006571301104330155329558",
                "247200306413930743667171147817033167050"
            ]
        }
    },
    {
        "signature_version": "v1",
        "signature_type": "Function",
        "source": "https://github.com/openssl/openssl/commit/efbe126e3ebb9123ac9d058aa2bb044261342aaa",
        "id": "CVE-2017-3730-d4f05f43",
        "target": {
            "function": "tls_construct_cke_dhe",
            "file": "ssl/statem/statem_clnt.c"
        },
        "deprecated": false,
        "digest": {
            "function_hash": "130998826456393305051557197549969402375",
            "length": 838.0
        }
    }
]