fkie_cve-2020-11501
Vulnerability from fkie_nvd
Published
2020-04-03 13:15
Modified
2024-11-21 04:58
Severity ?
7.4 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Summary
GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 (2018-07-16) because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\0' bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks the security guarantees of the DTLS protocol.
References
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2020-04/msg00015.htmlThird Party Advisory
cve@mitre.orghttps://gitlab.com/gnutls/gnutls/-/commit/5b595e8e52653f6c5726a4cdd8fddeb6e83804d2Patch, Third Party Advisory
cve@mitre.orghttps://gitlab.com/gnutls/gnutls/-/issues/960Issue Tracking, Patch, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ILMOWPKMTZAIMK5F32TUMO34XCABUCFJ/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDYY3R4F5CUTFAMXH2C5NKYFVDEJLTT7/
cve@mitre.orghttps://security.gentoo.org/glsa/202004-06Third Party Advisory
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20200416-0002/Third Party Advisory
cve@mitre.orghttps://usn.ubuntu.com/4322-1/Third Party Advisory
cve@mitre.orghttps://www.debian.org/security/2020/dsa-4652Third Party Advisory
cve@mitre.orghttps://www.gnutls.org/security-new.html#GNUTLS-SA-2020-03-31Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00015.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/gnutls/gnutls/-/commit/5b595e8e52653f6c5726a4cdd8fddeb6e83804d2Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/gnutls/gnutls/-/issues/960Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ILMOWPKMTZAIMK5F32TUMO34XCABUCFJ/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDYY3R4F5CUTFAMXH2C5NKYFVDEJLTT7/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202004-06Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20200416-0002/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4322-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2020/dsa-4652Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.gnutls.org/security-new.html#GNUTLS-SA-2020-03-31Vendor Advisory
Impacted products
Vendor Product Version
gnu gnutls *
canonical ubuntu_linux 19.10
debian debian_linux 10.0
opensuse leap 15.1
fedoraproject fedora 31
fedoraproject fedora 32


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "BFED3757-264B-4E8D-B6DD-4E0B47E3BCC1",
                     versionEndExcluding: "3.6.13",
                     versionStartIncluding: "3.6.3",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*",
                     matchCriteriaId: "A31C8344-3E02-4EB8-8BD8-4C84B7959624",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                     matchCriteriaId: "07B237A9-69A3-4A9C-9DA0-4E06BD37AE73",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
                     matchCriteriaId: "B620311B-34A3-48A6-82DF-6F078D7A4493",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*",
                     matchCriteriaId: "80F0FA5D-8D3B-4C0E-81E2-87998286AF33",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*",
                     matchCriteriaId: "36D96259-24BD-44E2-96D9-78CE1D41F956",
                     vulnerable: true,
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               negate: false,
               operator: "OR",
            },
         ],
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   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "GnuTLS 3.6.x before 3.6.13 uses incorrect cryptography for DTLS. The earliest affected version is 3.6.3 (2018-07-16) because of an error in a 2017-10-06 commit. The DTLS client always uses 32 '\\0' bytes instead of a random value, and thus contributes no randomness to a DTLS negotiation. This breaks the security guarantees of the DTLS protocol.",
      },
      {
         lang: "es",
         value: "GnuTLS versiones 3.6.x anteriores a 3.6.13, usa una criptografía incorrecta para DTLS. La primera versión afectada es 3.6.3 (16-07-2018) debido a un error en un commit del 06-10-2017. El cliente DTLS siempre usa 32 bytes \"\\0\" en lugar de un valor aleatorio y, por lo tanto, no contribuye con la aleatoriedad en una negociación DTLS. Esto rompe las garantías de seguridad del protocolo DTLS.",
      },
   ],
   id: "CVE-2020-11501",
   lastModified: "2024-11-21T04:58:01.673",
   metrics: {
      cvssMetricV2: [
         {
            acInsufInfo: false,
            baseSeverity: "MEDIUM",
            cvssData: {
               accessComplexity: "MEDIUM",
               accessVector: "NETWORK",
               authentication: "NONE",
               availabilityImpact: "NONE",
               baseScore: 5.8,
               confidentialityImpact: "PARTIAL",
               integrityImpact: "PARTIAL",
               vectorString: "AV:N/AC:M/Au:N/C:P/I:P/A:N",
               version: "2.0",
            },
            exploitabilityScore: 8.6,
            impactScore: 4.9,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: false,
         },
      ],
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "HIGH",
               attackVector: "NETWORK",
               availabilityImpact: "NONE",
               baseScore: 7.4,
               baseSeverity: "HIGH",
               confidentialityImpact: "HIGH",
               integrityImpact: "HIGH",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
               version: "3.1",
            },
            exploitabilityScore: 2.2,
            impactScore: 5.2,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2020-04-03T13:15:13.170",
   references: [
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         source: "cve@mitre.org",
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   sourceIdentifier: "cve@mitre.org",
   vulnStatus: "Modified",
   weaknesses: [
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            {
               lang: "en",
               value: "CWE-330",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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