fkie_cve-2020-24659
Vulnerability from fkie_nvd
Published
2020-09-04 15:15
Modified
2024-11-21 05:15
Summary
An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens in the application's error handling path, where the gnutls_deinit function is called after detecting a handshake failure.
References
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2020-10/msg00054.htmlMailing List, Third Party Advisory
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2020-10/msg00060.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://gitlab.com/gnutls/gnutls/-/issues/1071Exploit, Issue Tracking, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62BUAI4FQQLG6VTKRT7SUZPGJJ4NASQ3/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AWN56FDLQQXT2D2YHNI4TYH432TDMQ7N/
cve@mitre.orghttps://security.gentoo.org/glsa/202009-01Third Party Advisory
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20200911-0006/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/4491-1/Third Party Advisory
cve@mitre.orghttps://www.gnutls.org/security-new.html#GNUTLS-SA-2020-09-04Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00054.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00060.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/gnutls/gnutls/-/issues/1071Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/62BUAI4FQQLG6VTKRT7SUZPGJJ4NASQ3/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AWN56FDLQQXT2D2YHNI4TYH432TDMQ7N/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202009-01Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20200911-0006/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4491-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-09-04Vendor Advisory
Impacted products



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                     versionEndExcluding: "3.6.15",
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   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "An issue was discovered in GnuTLS before 3.6.15. A server can trigger a NULL pointer dereference in a TLS 1.3 client if a no_renegotiation alert is sent with unexpected timing, and then an invalid second handshake occurs. The crash happens in the application's error handling path, where the gnutls_deinit function is called after detecting a handshake failure.",
      },
      {
         lang: "es",
         value: "Se detectó un problema en GnuTLS versiones anteriores a 3.6.15. Un servidor puede desencadenar una desreferencia del puntero NULL en un cliente TLS versión 1.3, si una alerta no_renegotiation es enviada con una sincronización no prevista y luego se produce un segundo protocolo de enlace no válido. El bloqueo ocurre en la ruta de manejo de errores de la aplicación, donde la función gnutls_deinit es llamada después de detectar un fallo en el protocolo de enlace",
      },
   ],
   id: "CVE-2020-24659",
   lastModified: "2024-11-21T05:15:26.003",
   metrics: {
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         {
            acInsufInfo: false,
            baseSeverity: "MEDIUM",
            cvssData: {
               accessComplexity: "LOW",
               accessVector: "NETWORK",
               authentication: "NONE",
               availabilityImpact: "PARTIAL",
               baseScore: 5,
               confidentialityImpact: "NONE",
               integrityImpact: "NONE",
               vectorString: "AV:N/AC:L/Au:N/C:N/I:N/A:P",
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            },
            exploitabilityScore: 10,
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            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
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               scope: "UNCHANGED",
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   published: "2020-09-04T15:15:10.803",
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   sourceIdentifier: "cve@mitre.org",
   vulnStatus: "Modified",
   weaknesses: [
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         description: [
            {
               lang: "en",
               value: "CWE-476",
            },
            {
               lang: "en",
               value: "CWE-787",
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}


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