CVE-2018-12436

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Source
https://nvd.nist.gov/vuln/detail/CVE-2018-12436
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-12436.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2018-12436
Downstream
Published
2018-06-15T02:29:00.423Z
Modified
2025-11-14T07:39:50.757030Z
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
9b9568d500f31f964af26ba8d01e542e1f27e5ca

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
v2.1.1
v2.1.2
v2.1.4
v2.2.0
v2.2.1
v2.2.2
v2.3.0
v2.4.0
v2.4.2
v2.4.6
v2.4.7
v2.5.0
v2.5.2
v2.5.2b
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.*

v3.0.0
v3.0.2
v3.1.0
v3.10.0-stable
v3.10.0a
v3.10.2-stable
v3.10.3
v3.10.4
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
v3.14.5
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
v3.4.8
v3.6.0
v3.6.0b
v3.6.2
v3.6.6
v3.6.8
v3.6.9
v3.6.9b
v3.6.9c
v3.6.9d
v3.69.d
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

[
    {
        "signature_type": "Function",
        "deprecated": false,
        "id": "CVE-2018-12436-03e5e19c",
        "digest": {
            "length": 798.0,
            "function_hash": "97098694070618479796839824861712676912"
        },
        "source": "https://github.com/wolfssl/wolfssl/commit/9b9568d500f31f964af26ba8d01e542e1f27e5ca",
        "signature_version": "v1",
        "target": {
            "function": "wc_ecc_gen_k",
            "file": "wolfcrypt/src/ecc.c"
        }
    },
    {
        "signature_type": "Function",
        "deprecated": false,
        "id": "CVE-2018-12436-7d2e4743",
        "digest": {
            "length": 6073.0,
            "function_hash": "329601971156733586894920632165393768916"
        },
        "source": "https://github.com/wolfssl/wolfssl/commit/9b9568d500f31f964af26ba8d01e542e1f27e5ca",
        "signature_version": "v1",
        "target": {
            "function": "wc_ecc_sign_hash_ex",
            "file": "wolfcrypt/src/ecc.c"
        }
    },
    {
        "signature_type": "Line",
        "deprecated": false,
        "id": "CVE-2018-12436-9be8702e",
        "digest": {
            "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"
            ],
            "threshold": 0.9
        },
        "source": "https://github.com/wolfssl/wolfssl/commit/9b9568d500f31f964af26ba8d01e542e1f27e5ca",
        "signature_version": "v1",
        "target": {
            "file": "wolfcrypt/src/ecc.c"
        }
    }
]