fkie_cve-2019-13629
Vulnerability from fkie_nvd
Published
2019-10-03 14:15
Modified
2024-11-21 04:25
Severity ?
Summary
MatrixSSL 4.2.1 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or a remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because crypto/pubkey/ecc_math.c scalar multiplication leaks the bit length of the scalar.
References
| ▼ | URL | Tags | |
|---|---|---|---|
| cve@mitre.org | http://www.openwall.com/lists/oss-security/2019/10/02/2 | Mailing List, Third Party Advisory | |
| cve@mitre.org | https://eprint.iacr.org/2011/232.pdf | Not Applicable | |
| cve@mitre.org | https://minerva.crocs.fi.muni.cz/ | Product | |
| cve@mitre.org | https://tches.iacr.org/index.php/TCHES/article/view/7337 | Not Applicable | |
| af854a3a-2127-422b-91ae-364da2661108 | http://www.openwall.com/lists/oss-security/2019/10/02/2 | Mailing List, Third Party Advisory | |
| af854a3a-2127-422b-91ae-364da2661108 | https://eprint.iacr.org/2011/232.pdf | Not Applicable | |
| af854a3a-2127-422b-91ae-364da2661108 | https://minerva.crocs.fi.muni.cz/ | Product | |
| af854a3a-2127-422b-91ae-364da2661108 | https://tches.iacr.org/index.php/TCHES/article/view/7337 | Not Applicable |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:matrixssl:matrixssl:*:*:*:*:*:*:*:*",
"matchCriteriaId": "83C90122-07C8-4F04-A5E1-7B96417BFB7E",
"versionEndIncluding": "4.2.1",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "MatrixSSL 4.2.1 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or a remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because crypto/pubkey/ecc_math.c scalar multiplication leaks the bit length of the scalar."
},
{
"lang": "es",
"value": "MatrixSSL versi\u00f3n 4.2.1 y anteriores, contienen un canal lateral de temporizaci\u00f3n en la generaci\u00f3n de firmas ECDSA. Esto permite a un atacante local o remoto, capaz de medir la duraci\u00f3n de cientos de miles de operaciones de firma, calcular la clave privada usada. El problema se presenta porque la multiplicaci\u00f3n escalar del archivo crypto/pubkey/ecc_math.c pierde la longitud de bits del scalar."
}
],
"id": "CVE-2019-13629",
"lastModified": "2024-11-21T04:25:24.060",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.2,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2019-10-03T14:15:11.150",
"references": [
{
"source": "cve@mitre.org",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2019/10/02/2"
},
{
"source": "cve@mitre.org",
"tags": [
"Not Applicable"
],
"url": "https://eprint.iacr.org/2011/232.pdf"
},
{
"source": "cve@mitre.org",
"tags": [
"Product"
],
"url": "https://minerva.crocs.fi.muni.cz/"
},
{
"source": "cve@mitre.org",
"tags": [
"Not Applicable"
],
"url": "https://tches.iacr.org/index.php/TCHES/article/view/7337"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "http://www.openwall.com/lists/oss-security/2019/10/02/2"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Not Applicable"
],
"url": "https://eprint.iacr.org/2011/232.pdf"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Product"
],
"url": "https://minerva.crocs.fi.muni.cz/"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Not Applicable"
],
"url": "https://tches.iacr.org/index.php/TCHES/article/view/7337"
}
],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-203"
},
{
"lang": "en",
"value": "CWE-327"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
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- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.