fkie_cve-2021-33560
Vulnerability from fkie_nvd
Published
2021-06-08 11:15
Modified
2024-11-21 06:09
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



{
  "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 funci\u00f3n  mpi_powm, y el tama\u00f1o 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": 5.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "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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      "url": "https://dev.gnupg.org/T5466"
    },
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      "tags": [
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    {
      "source": "cve@mitre.org",
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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/"
    },
    {
      "source": "cve@mitre.org",
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    },
    {
      "source": "cve@mitre.org",
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      "url": "https://security.gentoo.org/glsa/202210-13"
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    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
    {
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  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-203"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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