CVE-2021-34558
Estado: ModificadaMedia (6.5)—
The crypto/tls package of Go through 1.16.5 does not properly assert that the type of public key in an X.509 certificate matches the expected type when doing a RSA based key exchange, allowing a malicious TLS server to cause a TLS client to panic.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Puntuación base: 6.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 6.98%
- Percentil entre todas las CVEs puntuadas: 94
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (6)
CWE
- CWE-295
Referencias
- https://golang.org/doc/devel/release#go1.16.minor
- https://groups.google.com/g/golang-announce
- https://groups.google.com/g/golang-announce/c/n9FxMelZGAQ
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3BA7MFVXRBEKRTLSLYDICTYCGEMK2HZ7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3XBQUFVI5TMV4KMKI7GKA223LHGPQISE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6BTC3JQUASFN5U2XA4UZIGAPZQBD5JSS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D7FRFM7WWR2JCT6NORQ7AO6B453OMI3I/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITRXPCHUCJGXCX2CUEPKZRRTB27GG4ZB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYIUSR4YP52PWG7YE7AA3DZ5OSURNFJB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LBMLUQMN6XRKPVOI5XFFBP4XSR7RNTYR/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NLOGBB7XBBRB3J5FDPW5KWHSH7IRF64W/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXJ2MVMAHOIGRH37ZSFYC4EVWLJFL2EQ/
- https://security.gentoo.org/glsa/202208-02
- https://security.netapp.com/advisory/ntap-20210813-0005/
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
- https://golang.org/doc/devel/release#go1.16.minor
- https://groups.google.com/g/golang-announce
- https://groups.google.com/g/golang-announce/c/n9FxMelZGAQ
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3BA7MFVXRBEKRTLSLYDICTYCGEMK2HZ7/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3XBQUFVI5TMV4KMKI7GKA223LHGPQISE/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6BTC3JQUASFN5U2XA4UZIGAPZQBD5JSS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D7FRFM7WWR2JCT6NORQ7AO6B453OMI3I/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITRXPCHUCJGXCX2CUEPKZRRTB27GG4ZB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYIUSR4YP52PWG7YE7AA3DZ5OSURNFJB/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LBMLUQMN6XRKPVOI5XFFBP4XSR7RNTYR/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NLOGBB7XBBRB3J5FDPW5KWHSH7IRF64W/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXJ2MVMAHOIGRH37ZSFYC4EVWLJFL2EQ/
- https://security.gentoo.org/glsa/202208-02
- https://security.netapp.com/advisory/ntap-20210813-0005/
- https://www.oracle.com/security-alerts/cpujan2022.html
- https://www.oracle.com/security-alerts/cpuoct2021.html
JSON original (NVD)
Mostrar
{
"id": "CVE-2021-34558",
"cveTags": [],
"metrics": {
"cvssMetricV2": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"version": "2.0",
"baseScore": 2.6,
"accessVector": "NETWORK",
"vectorString": "AV:N/AC:H/Au:N/C:N/I:N/A:P",
"authentication": "NONE",
"integrityImpact": "NONE",
"accessComplexity": "HIGH",
"availabilityImpact": "PARTIAL",
"confidentialityImpact": "NONE"
},
"acInsufInfo": false,
"impactScore": 2.9,
"baseSeverity": "LOW",
"obtainAllPrivilege": false,
"exploitabilityScore": 4.9,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": true
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 6.5,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "cve@mitre.org",
"affectedData": [
{
"vendor": "n/a",
"product": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
]
}
],
"published": "2021-07-15T14:15:19.660",
"references": [
{
"url": "https://golang.org/doc/devel/release#go1.16.minor",
"tags": [
"Release Notes",
"Vendor Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://groups.google.com/g/golang-announce",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://groups.google.com/g/golang-announce/c/n9FxMelZGAQ",
"tags": [
"Mailing List",
"Release Notes",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3BA7MFVXRBEKRTLSLYDICTYCGEMK2HZ7/",
"source": "cve@mitre.org"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3XBQUFVI5TMV4KMKI7GKA223LHGPQISE/",
"source": "cve@mitre.org"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6BTC3JQUASFN5U2XA4UZIGAPZQBD5JSS/",
"source": "cve@mitre.org"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D7FRFM7WWR2JCT6NORQ7AO6B453OMI3I/",
"source": "cve@mitre.org"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITRXPCHUCJGXCX2CUEPKZRRTB27GG4ZB/",
"source": "cve@mitre.org"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYIUSR4YP52PWG7YE7AA3DZ5OSURNFJB/",
"source": "cve@mitre.org"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LBMLUQMN6XRKPVOI5XFFBP4XSR7RNTYR/",
"source": "cve@mitre.org"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NLOGBB7XBBRB3J5FDPW5KWHSH7IRF64W/",
"source": "cve@mitre.org"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXJ2MVMAHOIGRH37ZSFYC4EVWLJFL2EQ/",
"source": "cve@mitre.org"
},
{
"url": "https://security.gentoo.org/glsa/202208-02",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://security.netapp.com/advisory/ntap-20210813-0005/",
"tags": [
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://www.oracle.com/security-alerts/cpujan2022.html",
"tags": [
"Patch",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://www.oracle.com/security-alerts/cpuoct2021.html",
"tags": [
"Patch",
"Third Party Advisory"
],
"source": "cve@mitre.org"
},
{
"url": "https://golang.org/doc/devel/release#go1.16.minor",
"tags": [
"Release Notes",
"Vendor Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://groups.google.com/g/golang-announce",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://groups.google.com/g/golang-announce/c/n9FxMelZGAQ",
"tags": [
"Mailing List",
"Release Notes",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3BA7MFVXRBEKRTLSLYDICTYCGEMK2HZ7/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3XBQUFVI5TMV4KMKI7GKA223LHGPQISE/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6BTC3JQUASFN5U2XA4UZIGAPZQBD5JSS/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D7FRFM7WWR2JCT6NORQ7AO6B453OMI3I/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ITRXPCHUCJGXCX2CUEPKZRRTB27GG4ZB/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JYIUSR4YP52PWG7YE7AA3DZ5OSURNFJB/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LBMLUQMN6XRKPVOI5XFFBP4XSR7RNTYR/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NLOGBB7XBBRB3J5FDPW5KWHSH7IRF64W/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WXJ2MVMAHOIGRH37ZSFYC4EVWLJFL2EQ/",
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://security.gentoo.org/glsa/202208-02",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://security.netapp.com/advisory/ntap-20210813-0005/",
"tags": [
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.oracle.com/security-alerts/cpujan2022.html",
"tags": [
"Patch",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
},
{
"url": "https://www.oracle.com/security-alerts/cpuoct2021.html",
"tags": [
"Patch",
"Third Party Advisory"
],
"source": "af854a3a-2127-422b-91ae-364da2661108"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-295"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "The crypto/tls package of Go through 1.16.5 does not properly assert that the type of public key in an X.509 certificate matches the expected type when doing a RSA based key exchange, allowing a malicious TLS server to cause a TLS client to panic."
},
{
"lang": "es",
"value": "El paquete crypto/tls de Go versiones hasta 1.16.5, no afirma apropiadamente que el tipo de clave pública en un certificado X.509 coincida con el tipo esperado cuando se hace un intercambio de claves basado en RSA, permitiendo a un servidor TLS malicioso causar el pánico en un cliente TLS"
}
],
"lastModified": "2026-06-17T03:56:07.257",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "D4C75B08-37AB-4BF9-8DAA-0E4479E5EB43",
"versionEndExcluding": "1.15.14"
},
{
"criteria": "cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EEAF2DA1-11A7-4A2B-A05A-26FD7E80805C",
"versionEndExcluding": "1.16.6",
"versionStartIncluding": "1.16.0"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E460AA51-FCDA-46B9-AE97-E6676AA5E194"
},
{
"criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:netapp:cloud_insights_telegraf:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F7E26C3B-E416-49D6-B296-33CD93694D39"
},
{
"criteria": "cpe:2.3:a:netapp:storagegrid:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8ADFF451-740F-4DBA-BD23-3881945D3E40"
},
{
"criteria": "cpe:2.3:a:netapp:trident:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5D9A34F5-AC03-4098-A37D-AD50727DDB11"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:oracle:timesten_in-memory_database:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "20290BBC-E3C9-4B96-94FE-2DFADD4BF1F1",
"versionEndExcluding": "21.1.1.1.0"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "cve@mitre.org"
}