CVE-2018-12436

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Source
https://cve.org/CVERecord?id=CVE-2018-12436
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-12436.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2018-12436
Downstream
Published
2018-06-15T02:29:00.423Z
Modified
2026-04-11T06:58:44.126688Z
Severity
  • 4.7 (Medium) CVSS_V3 - CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

wolfcrypt/src/ecc.c in wolfSSL before 3.15.1.patch allows a memory-cache side-channel attack on ECDSA signatures, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.

References

Affected packages

Git / github.com/wolfssl/wolfssl

Affected ranges

Type
GIT
Repo
https://github.com/wolfssl/wolfssl
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
1179969dcf81e1e44fd35e387febd4f8ca38d85d
Fixed
9b9568d500f31f964af26ba8d01e542e1f27e5ca
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "3.15.3"
        }
    ]
}

Affected versions

v0.*
v0.5
v1.*
v1.8.8.0
v1.9.0
v2.*
v2.0.2
v2.0.3
v2.0.6
v2.0.8
v2.0rc1
v2.0rc2
v2.0rc2b
v2.0rc3
v2.4.2
v2.4.6
v2.4.7
v2.6.0
v2.6.2
v2.7.0
v2.7.2
v2.8.0
v2.8.2
v2.8.3
v2.8.4
v2.8.5
v2.8.5a
v2.8.6
v2.9.0
v2.9.1
v2.9.2
v2.9.4
v3.*
v3.10.0-stable
v3.10.0a
v3.10.2-stable
v3.10.3
v3.11.0-stable
v3.11.1-tls13-beta
v3.12.0-stable
v3.12.2-stable
v3.13.0-stable
v3.13.2
v3.13.3
v3.14.0-stable
v3.14.0a
v3.14.0b
v3.14.2
v3.14.4
v3.15.0-stable
v3.2.0
v3.2.4
v3.2.6
v3.3.0
v3.3.3
v3.4.0
v3.4.2
v3.4.6
v3.6.8
v3.6.9
v3.7.0
v3.7.1
v3.7.3
v3.8.0
v3.9.0
v3.9.1
v3.9.10-stable
v3.9.10b
v3.9.6
v3.9.6w
v3.9.8

Database specific

vanir_signatures 
[
    {
        "digest": {
            "function_hash": "97098694070618479796839824861712676912",
            "length": 798.0
        },
        "id": "CVE-2018-12436-03e5e19c",
        "signature_type": "Function",
        "source": "https://github.com/wolfssl/wolfssl/commit/9b9568d500f31f964af26ba8d01e542e1f27e5ca",
        "deprecated": false,
        "target": {
            "function": "wc_ecc_gen_k",
            "file": "wolfcrypt/src/ecc.c"
        },
        "signature_version": "v1"
    },
    {
        "digest": {
            "function_hash": "329601971156733586894920632165393768916",
            "length": 6073.0
        },
        "id": "CVE-2018-12436-7d2e4743",
        "signature_type": "Function",
        "source": "https://github.com/wolfssl/wolfssl/commit/9b9568d500f31f964af26ba8d01e542e1f27e5ca",
        "deprecated": false,
        "target": {
            "function": "wc_ecc_sign_hash_ex",
            "file": "wolfcrypt/src/ecc.c"
        },
        "signature_version": "v1"
    },
    {
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "180105540832317960135869179642485368458",
                "219670112345521747196662040631326145700",
                "16111731207495186350516201396152731575",
                "84580058371629366077470150564612674802",
                "338280410321397857655128996363835051309",
                "275739291280294658398206417064560146914",
                "43222418277609380264329009969200061082",
                "281911540114982861058971188872665423747",
                "120207583837105358401042174516439733029",
                "35144380420131484861593369048590002852",
                "287111173886096549423603016843712953966",
                "224969320601590970213067024922785565873",
                "116541833046167184336218681229605942449",
                "297537371672909726796839019846523928632",
                "30414633575863347317212229842143138176",
                "139116827036489476815642640892002953346",
                "141218504163137182235295909753019846141",
                "18542260038182372672688065707602259741",
                "164561830877312627579682711805580772728",
                "75202648303631630100611227098050061419",
                "227368077280084628061074102065322406230",
                "319585949210892297687748878719963247398",
                "101638936496678138146601086666856366866",
                "210294045997350206660528821359663780294",
                "169857514239109531428198600871698928543",
                "194089326328324240590752388381939524044",
                "216345207333688073353394951787849222414",
                "157954063479739293112728240484396121451",
                "6030899692141079888304492776418959104",
                "238170310874901192081407911422618976324",
                "11404882872460344036499629001227805627",
                "303394133142596662493052787285145781651",
                "170803551361033665570430574072960793399",
                "293702046138194098313276599765382829765",
                "161964254929860119880494294595042289820",
                "113536867443714089690266207735977194456",
                "331957245513875143663211821403297561902",
                "1047273769436126680075077787862867170",
                "99632092121648833459388601988131629043",
                "237104132855061567602291230687355861176",
                "229257314256408985491156933656895597416",
                "280275082197584052408944518295226672803",
                "275684663132770170878378752916701360836"
            ]
        },
        "id": "CVE-2018-12436-9be8702e",
        "signature_type": "Line",
        "source": "https://github.com/wolfssl/wolfssl/commit/9b9568d500f31f964af26ba8d01e542e1f27e5ca",
        "deprecated": false,
        "target": {
            "file": "wolfcrypt/src/ecc.c"
        },
        "signature_version": "v1"
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-12436.json"
vanir_signatures_modified 
"2026-04-11T06:58:44Z"