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FKIE_CVE-2018-10845

Vulnerability from fkie_nvd - Published: 2018-08-22 13:29 - Updated: 2026-06-17 01:34
Summary
It was found that the GnuTLS implementation of HMAC-SHA-384 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plain text recovery attacks via statistical analysis of timing data using crafted packets.
References
secalert@redhat.comhttp://www.securityfocus.com/bid/105138Third Party Advisory, VDB Entry
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:3050Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2018:3505Broken Link
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10845Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://eprint.iacr.org/2018/747Third Party Advisory
secalert@redhat.comhttps://gitlab.com/gnutls/gnutls/merge_requests/657Patch, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2018/10/msg00022.htmlThird Party Advisory
secalert@redhat.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ILMOWPKMTZAIMK5F32TUMO34XCABUCFJ/
secalert@redhat.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDYY3R4F5CUTFAMXH2C5NKYFVDEJLTT7/
secalert@redhat.comhttps://usn.ubuntu.com/3999-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/105138Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:3050Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2018:3505Broken Link
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10845Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://eprint.iacr.org/2018/747Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/gnutls/gnutls/merge_requests/657Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2018/10/msg00022.htmlThird 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://usn.ubuntu.com/3999-1/Third Party Advisory

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "gnutls",
          "vendor": "[UNKNOWN]",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
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              "matchCriteriaId": "ECA0072D-DE2F-467F-9143-371A8CCB9000",
              "versionEndExcluding": "3.6.12",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
    {
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              "vulnerable": true
            },
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              "vulnerable": true
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              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "It was found that the GnuTLS implementation of HMAC-SHA-384 was vulnerable to a Lucky thirteen style attack. Remote attackers could use this flaw to conduct distinguishing attacks and plain text recovery attacks via statistical analysis of timing data using crafted packets."
    },
    {
      "lang": "es",
      "value": "Se ha detectado que la implementaci\u00f3n GnuTLS de HMAC-SHA-384 era vulnerable a un ataque de estilo Lucky Thirteen. Los atacantes remotos podr\u00edan utilizar este fallo para realizar ataques de distinci\u00f3n y de recuperaci\u00f3n en texto plano mediante an\u00e1lisis estad\u00edsticos de datos temporales mediante paquetes manipulados."
    }
  ],
  "id": "CVE-2018-10845",
  "lastModified": "2026-06-17T01:34:45.067",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 4.3,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2018-08-22T13:29:00.440",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory",
        "VDB Entry"
      ],
      "url": "http://www.securityfocus.com/bid/105138"
    },
    {
      "source": "secalert@redhat.com",
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      ],
      "url": "https://access.redhat.com/errata/RHSA-2018:3050"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Broken Link"
      ],
      "url": "https://access.redhat.com/errata/RHSA-2018:3505"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
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        "Third Party Advisory"
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    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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      "source": "secalert@redhat.com",
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  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
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          "value": "CWE-385"
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          "value": "CWE-327"
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      ],
      "source": "nvd@nist.gov",
      "type": "Secondary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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