fkie_cve-2021-33560
Vulnerability from fkie_nvd
Published
2021-06-08 11:15
Modified
2024-11-21 06:09
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. This, for example, affects use of ElGamal in OpenPGP.
References
cve@mitre.orghttps://dev.gnupg.org/T5305Release Notes, Vendor Advisory
cve@mitre.orghttps://dev.gnupg.org/T5328Vendor Advisory
cve@mitre.orghttps://dev.gnupg.org/T5466Release Notes, Vendor Advisory
cve@mitre.orghttps://dev.gnupg.org/rCe8b7f10be275bcedb5fc05ed4837a89bfd605c61Patch, Vendor Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2021/06/msg00021.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BKKTOIGFW2SGN3DO2UHHVZ7MJSYN4AAB/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7OAPCUGPF3VLA7QAJUQSL255D4ITVTL/
cve@mitre.orghttps://security.gentoo.org/glsa/202210-13Third Party Advisory
cve@mitre.orghttps://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
cve@mitre.orghttps://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
cve@mitre.orghttps://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
cve@mitre.orghttps://www.oracle.com/security-alerts/cpuoct2021.htmlThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://dev.gnupg.org/T5305Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://dev.gnupg.org/T5328Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://dev.gnupg.org/T5466Release Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://dev.gnupg.org/rCe8b7f10be275bcedb5fc05ed4837a89bfd605c61Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2021/06/msg00021.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BKKTOIGFW2SGN3DO2UHHVZ7MJSYN4AAB/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7OAPCUGPF3VLA7QAJUQSL255D4ITVTL/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202210-13Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpujul2022.htmlPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpuoct2021.htmlThird Party Advisory
Impacted products
Vendor Product Version
gnupg libgcrypt *
gnupg libgcrypt *
debian debian_linux 9.0
fedoraproject fedora 33
fedoraproject fedora 34
oracle communications_cloud_native_core_binding_support_function 1.11.0
oracle communications_cloud_native_core_network_function_cloud_native_environment 1.9.0
oracle communications_cloud_native_core_network_function_cloud_native_environment 1.10.0
oracle communications_cloud_native_core_network_repository_function 1.14.0
oracle communications_cloud_native_core_network_repository_function 1.15.0
oracle communications_cloud_native_core_network_repository_function 1.15.1
oracle communications_cloud_native_core_network_slice_selection_function 1.8.0
oracle communications_cloud_native_core_service_communication_proxy 1.15.0


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "62143F8E-223E-44EF-A409-524C0EE4F910",
                     versionEndExcluding: "1.8.8",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:gnupg:libgcrypt:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "492FE6EB-BD5E-4FEC-9C43-8A67C659C948",
                     versionEndExcluding: "1.9.3",
                     versionStartIncluding: "1.9.0",
                     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",
            },
         ],
      },
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
                     matchCriteriaId: "E460AA51-FCDA-46B9-AE97-E6676AA5E194",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
                     matchCriteriaId: "A930E247-0B43-43CB-98FF-6CE7B8189835",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:oracle:communications_cloud_native_core_binding_support_function:1.11.0:*:*:*:*:*:*:*",
                     matchCriteriaId: "10323322-F6C0-4EA7-9344-736F7A80AA5F",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.9.0:*:*:*:*:*:*:*",
                     matchCriteriaId: "5D423B62-8EFE-4EFD-A986-5F5ECE5B892F",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:oracle:communications_cloud_native_core_network_function_cloud_native_environment:1.10.0:*:*:*:*:*:*:*",
                     matchCriteriaId: "C2A5B24D-BDF2-423C-98EA-A40778C01A05",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:1.14.0:*:*:*:*:*:*:*",
                     matchCriteriaId: "8E463039-5E48-4AA0-A42B-081053FA0111",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:1.15.0:*:*:*:*:*:*:*",
                     matchCriteriaId: "6F60E32F-0CA0-4C2D-9848-CB92765A9ACB",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:oracle:communications_cloud_native_core_network_repository_function:1.15.1:*:*:*:*:*:*:*",
                     matchCriteriaId: "DF616620-88CE-4A77-B904-C1728A2E6F9B",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:oracle:communications_cloud_native_core_network_slice_selection_function:1.8.0:*:*:*:*:*:*:*",
                     matchCriteriaId: "3AA09838-BF13-46AC-BB97-A69F48B73A8A",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:oracle:communications_cloud_native_core_service_communication_proxy:1.15.0:*:*:*:*:*:*:*",
                     matchCriteriaId: "175B97A7-0B00-4378-AD9F-C01B6D9FD570",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "Libgcrypt before 1.8.8 and 1.9.x before 1.9.3 mishandles ElGamal encryption because it lacks exponent blinding to address a side-channel attack against mpi_powm, and the window size is not chosen appropriately. This, for example, affects use of ElGamal in OpenPGP.",
      },
      {
         lang: "es",
         value: "Libgcrypt versiones anteriores a 1.8.8 y versiones 1.9.x anteriores a 1.9.3, maneja inapropiadamente el cifrado de ElGamal porque carece de cegado de exponentes para hacer frente a un ataque de canal lateral contra la función  mpi_powm, y el tamaño de la ventana no se elige apropiadamente. Esto, por ejemplo, afecta el uso de ElGamal en OpenPGP.",
      },
   ],
   id: "CVE-2021-33560",
   lastModified: "2024-11-21T06:09:05.760",
   metrics: {
      cvssMetricV2: [
         {
            acInsufInfo: false,
            baseSeverity: "MEDIUM",
            cvssData: {
               accessComplexity: "LOW",
               accessVector: "NETWORK",
               authentication: "NONE",
               availabilityImpact: "NONE",
               baseScore: 5,
               confidentialityImpact: "PARTIAL",
               integrityImpact: "NONE",
               vectorString: "AV:N/AC:L/Au:N/C:P/I:N/A:N",
               version: "2.0",
            },
            exploitabilityScore: 10,
            impactScore: 2.9,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: false,
         },
      ],
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "NETWORK",
               availabilityImpact: "NONE",
               baseScore: 7.5,
               baseSeverity: "HIGH",
               confidentialityImpact: "HIGH",
               integrityImpact: "NONE",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
               version: "3.1",
            },
            exploitabilityScore: 3.9,
            impactScore: 3.6,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2021-06-08T11:15:07.767",
   references: [
      {
         source: "cve@mitre.org",
         tags: [
            "Release Notes",
            "Vendor Advisory",
         ],
         url: "https://dev.gnupg.org/T5305",
      },
      {
         source: "cve@mitre.org",
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            "Vendor Advisory",
         ],
         url: "https://dev.gnupg.org/T5328",
      },
      {
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         tags: [
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         ],
         url: "https://dev.gnupg.org/T5466",
      },
      {
         source: "cve@mitre.org",
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         url: "https://dev.gnupg.org/rCe8b7f10be275bcedb5fc05ed4837a89bfd605c61",
      },
      {
         source: "cve@mitre.org",
         tags: [
            "Mailing List",
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         ],
         url: "https://lists.debian.org/debian-lts-announce/2021/06/msg00021.html",
      },
      {
         source: "cve@mitre.org",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BKKTOIGFW2SGN3DO2UHHVZ7MJSYN4AAB/",
      },
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         source: "cve@mitre.org",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R7OAPCUGPF3VLA7QAJUQSL255D4ITVTL/",
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      {
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      },
      {
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         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BKKTOIGFW2SGN3DO2UHHVZ7MJSYN4AAB/",
      },
      {
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         url: "https://www.oracle.com/security-alerts/cpuoct2021.html",
      },
   ],
   sourceIdentifier: "cve@mitre.org",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-203",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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