fkie_cve-2020-28242
Vulnerability from fkie_nvd
Published
2020-11-06 06:15
Modified
2024-11-21 05:22
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
An issue was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1 and Certified Asterisk before 16.8-cert5. If Asterisk is challenged on an outbound INVITE and the nonce is changed in each response, Asterisk will continually send INVITEs in a loop. This causes Asterisk to consume more and more memory since the transaction will never terminate (even if the call is hung up), ultimately leading to a restart or shutdown of Asterisk. Outbound authentication must be configured on the endpoint for this to occur.
References
cve@mitre.orghttp://downloads.asterisk.org/pub/security/AST-2020-002.htmlVendor Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2022/04/msg00001.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QUS54QTQCYKR36EIULYD544GXDA644HB/
af854a3a-2127-422b-91ae-364da2661108http://downloads.asterisk.org/pub/security/AST-2020-002.htmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/04/msg00001.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QUS54QTQCYKR36EIULYD544GXDA644HB/
Impacted products
Vendor Product Version
asterisk certified_asterisk *
sangoma asterisk *
sangoma asterisk *
sangoma asterisk *
sangoma asterisk *
fedoraproject fedora 33
debian debian_linux 9.0


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:asterisk:certified_asterisk:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "1FD83903-7BCB-4980-AB42-957867077070",
                     versionEndIncluding: "16.8.0",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "55E64E8D-DE76-4047-813E-0325E49D7BFB",
                     versionEndExcluding: "13.37.1",
                     versionStartIncluding: "13.0",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "5F2DA86C-6FB5-4ACC-83BF-812BECD26441",
                     versionEndExcluding: "16.14.1",
                     versionStartIncluding: "16.0",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "AB33E582-97C0-428E-A696-BF84F9E2E5D5",
                     versionEndExcluding: "17.8.1",
                     versionStartIncluding: "17.0",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:sangoma:asterisk:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "716CD81A-8970-42B6-92CB-42D9C9C36B5C",
                     versionEndExcluding: "18.0.1",
                     versionStartIncluding: "18.0",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
                     matchCriteriaId: "E460AA51-FCDA-46B9-AE97-E6676AA5E194",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                     matchCriteriaId: "DEECE5FC-CACF-4496-A3E7-164736409252",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "An issue was discovered in Asterisk Open Source 13.x before 13.37.1, 16.x before 16.14.1, 17.x before 17.8.1, and 18.x before 18.0.1 and Certified Asterisk before 16.8-cert5. If Asterisk is challenged on an outbound INVITE and the nonce is changed in each response, Asterisk will continually send INVITEs in a loop. This causes Asterisk to consume more and more memory since the transaction will never terminate (even if the call is hung up), ultimately leading to a restart or shutdown of Asterisk. Outbound authentication must be configured on the endpoint for this to occur.",
      },
      {
         lang: "es",
         value: "Se detectó un problema en Asterisk Open Source versiones 13.x anteriores a 13.37.1, versiones 16.x  anteriores a 16.14.1, versiones 17.x  anteriores a 17.8.1 y versiones 18.x anteriores a 18.0.1 y Certified Asterisk versiones anteriores a 16.8-cert5. Si Asterisk es desafiado en un INVITE saliente y el nonce es cambiado en cada respuesta, Asterisk enviará los INVITE continuamente en un bucle. Esto causa que Asterisk consuma más y más memoria ya que la transacción nunca terminará (incluso si la llamada se cuelga), lo que a la larga conllevará a un reinicio o cierre de Asterisk. Para que esto ocurra, la autenticación saliente debe ser configurada en el endpoint",
      },
   ],
   id: "CVE-2020-28242",
   lastModified: "2024-11-21T05:22:30.340",
   metrics: {
      cvssMetricV2: [
         {
            acInsufInfo: false,
            baseSeverity: "MEDIUM",
            cvssData: {
               accessComplexity: "LOW",
               accessVector: "NETWORK",
               authentication: "SINGLE",
               availabilityImpact: "PARTIAL",
               baseScore: 4,
               confidentialityImpact: "NONE",
               integrityImpact: "NONE",
               vectorString: "AV:N/AC:L/Au:S/C:N/I:N/A:P",
               version: "2.0",
            },
            exploitabilityScore: 8,
            impactScore: 2.9,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: false,
         },
      ],
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "NETWORK",
               availabilityImpact: "HIGH",
               baseScore: 6.5,
               baseSeverity: "MEDIUM",
               confidentialityImpact: "NONE",
               integrityImpact: "NONE",
               privilegesRequired: "LOW",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
               version: "3.1",
            },
            exploitabilityScore: 2.8,
            impactScore: 3.6,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2020-11-06T06:15:11.930",
   references: [
      {
         source: "cve@mitre.org",
         tags: [
            "Vendor Advisory",
         ],
         url: "http://downloads.asterisk.org/pub/security/AST-2020-002.html",
      },
      {
         source: "cve@mitre.org",
         tags: [
            "Mailing List",
            "Third Party Advisory",
         ],
         url: "https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html",
      },
      {
         source: "cve@mitre.org",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QUS54QTQCYKR36EIULYD544GXDA644HB/",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Vendor Advisory",
         ],
         url: "http://downloads.asterisk.org/pub/security/AST-2020-002.html",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Mailing List",
            "Third Party Advisory",
         ],
         url: "https://lists.debian.org/debian-lts-announce/2022/04/msg00001.html",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QUS54QTQCYKR36EIULYD544GXDA644HB/",
      },
   ],
   sourceIdentifier: "cve@mitre.org",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-674",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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