CVE-2019-19962

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Source
https://cve.org/CVERecord?id=CVE-2019-19962
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19962.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2019-19962
Downstream
Published
2019-12-25T00:15:10.837Z
Modified
2026-04-11T09:40:04.139607Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
Summary
[none]
Details

wolfSSL before 4.3.0 mishandles calls to wc_SignatureGenerateHash, leading to fault injection in RSA cryptography.

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
3f13b49fa318fbd3216d7da36d942e7c276d3413
Fixed
23878512c65834d12811b1107d19a001478eca5d
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "4.3.0"
        }
    ]
}

Affected versions

Other
WCv4-rng-stable
l
list
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
v3.15.3-stable
v3.15.5-stable
v3.15.5a
v3.15.6
v3.15.7-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
v4.*
v4.0.0-stable
v4.1.0-stable
v4.2.0-stable
v4.2.0c

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-19962.json"
vanir_signatures_modified 
"2026-04-11T09:40:04Z"
vanir_signatures 
[
    {
        "signature_version": "v1",
        "signature_type": "Function",
        "source": "https://github.com/wolfssl/wolfssl/commit/23878512c65834d12811b1107d19a001478eca5d",
        "digest": {
            "function_hash": "280898526316883553796056131544822533631",
            "length": 1498.0
        },
        "id": "CVE-2019-19962-cb157592",
        "deprecated": false,
        "target": {
            "file": "wolfcrypt/src/signature.c",
            "function": "wc_SignatureGenerate"
        }
    },
    {
        "signature_version": "v1",
        "signature_type": "Line",
        "source": "https://github.com/wolfssl/wolfssl/commit/23878512c65834d12811b1107d19a001478eca5d",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "183367531506453828284431957714265796015",
                "271727920447747985602935363666729442300",
                "34178006291805681364937247187268621194",
                "340070323416878982152651177810941381459",
                "188995703146070082731579765576360226735",
                "310917005651176049786524605881406992440",
                "186857375698041729311043402017510064986",
                "235113494579492487338458246341156289228",
                "151410232500645864130398883313760298884",
                "713984314885704256716525077298191989"
            ]
        },
        "id": "CVE-2019-19962-d0418dcd",
        "deprecated": false,
        "target": {
            "file": "wolfssl/wolfcrypt/signature.h"
        }
    },
    {
        "signature_version": "v1",
        "signature_type": "Function",
        "source": "https://github.com/wolfssl/wolfssl/commit/23878512c65834d12811b1107d19a001478eca5d",
        "digest": {
            "function_hash": "174358811701169574470443216876701897213",
            "length": 1574.0
        },
        "id": "CVE-2019-19962-defd775c",
        "deprecated": false,
        "target": {
            "file": "wolfcrypt/src/signature.c",
            "function": "wc_SignatureGenerateHash"
        }
    },
    {
        "signature_version": "v1",
        "signature_type": "Line",
        "source": "https://github.com/wolfssl/wolfssl/commit/23878512c65834d12811b1107d19a001478eca5d",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "47688785896623568419890783518549967432",
                "35520306330409795435397136097059283129",
                "37559554382899629595729250643348733372",
                "43326292487791229774476501769669468623",
                "13777234730378247670422650177782737029",
                "296599009438651474580404452929488205716",
                "5707132540592112121849258836230133498",
                "71189508136670216034639939856853736655",
                "129506018324396444813167887759095444349",
                "37559554382899629595729250643348733372",
                "162643340043010986344605972215757630769",
                "332914235055617855737065860458990384820",
                "304629791392230374913539484445356968870",
                "264216294140627362848053985132971342033"
            ]
        },
        "id": "CVE-2019-19962-e04c9ee8",
        "deprecated": false,
        "target": {
            "file": "wolfcrypt/src/signature.c"
        }
    }
]