fkie_cve-2019-10691
Vulnerability from fkie_nvd
Published
2019-04-24 17:29
Modified
2024-11-21 04:19
Severity ?
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username.
References
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2019-05/msg00000.htmlMailing List, Third Party Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2019/04/18/3Mailing List, Third Party Advisory
cve@mitre.orghttps://dovecot.org/list/dovecot-news/2019-April/000406.htmlMailing List, Vendor Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/
cve@mitre.orghttps://security.gentoo.org/glsa/201908-29
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00000.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2019/04/18/3Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://dovecot.org/list/dovecot-news/2019-April/000406.htmlMailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201908-29
Impacted products
Vendor Product Version
dovecot dovecot *
opensuse leap 15.0


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "707DA796-897B-4541-8690-FFBDDA756551",
                     versionEndExcluding: "2.3.5.2",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*",
                     matchCriteriaId: "F1E78106-58E6-4D59-990F-75DA575BFAD9",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "The JSON encoder in Dovecot before 2.3.5.2 allows attackers to repeatedly crash the authentication service by attempting to authenticate with an invalid UTF-8 sequence as the username.",
      },
      {
         lang: "es",
         value: "El codificador JSON en Dovecot versiones anteriores a 2.3.5.2 permite a los atacantes bloquear repetidamente el servicio de autenticación al intentar autenticarse con una secuencia UTF-8 no válida como nombre de usuario.",
      },
   ],
   id: "CVE-2019-10691",
   lastModified: "2024-11-21T04:19:45.653",
   metrics: {
      cvssMetricV2: [
         {
            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",
               version: "2.0",
            },
            exploitabilityScore: 10,
            impactScore: 2.9,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: false,
         },
      ],
      cvssMetricV30: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "NETWORK",
               availabilityImpact: "HIGH",
               baseScore: 7.5,
               baseSeverity: "HIGH",
               confidentialityImpact: "NONE",
               integrityImpact: "NONE",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
               version: "3.0",
            },
            exploitabilityScore: 3.9,
            impactScore: 3.6,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2019-04-24T17:29:00.397",
   references: [
      {
         source: "cve@mitre.org",
         tags: [
            "Mailing List",
            "Third Party Advisory",
         ],
         url: "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00000.html",
      },
      {
         source: "cve@mitre.org",
         tags: [
            "Mailing List",
            "Third Party Advisory",
         ],
         url: "http://www.openwall.com/lists/oss-security/2019/04/18/3",
      },
      {
         source: "cve@mitre.org",
         tags: [
            "Mailing List",
            "Vendor Advisory",
         ],
         url: "https://dovecot.org/list/dovecot-news/2019-April/000406.html",
      },
      {
         source: "cve@mitre.org",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/",
      },
      {
         source: "cve@mitre.org",
         url: "https://security.gentoo.org/glsa/201908-29",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Mailing List",
            "Third Party Advisory",
         ],
         url: "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00000.html",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Mailing List",
            "Third Party Advisory",
         ],
         url: "http://www.openwall.com/lists/oss-security/2019/04/18/3",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Mailing List",
            "Vendor Advisory",
         ],
         url: "https://dovecot.org/list/dovecot-news/2019-April/000406.html",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QHFZ5OWRIZGIWZJ5PTNVWWZNLLNH4XYS/",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://security.gentoo.org/glsa/201908-29",
      },
   ],
   sourceIdentifier: "cve@mitre.org",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "NVD-CWE-noinfo",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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