FKIE_CVE-2019-3836

Vulnerability from fkie_nvd - Published: 2019-04-01 15:29 - Updated: 2026-06-17 02:35
Severity
5.9 (Medium) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
It was discovered in gnutls before version 3.6.7 upstream that there is an uninitialized pointer access in gnutls versions 3.6.3 or later which can be triggered by certain post-handshake messages.
References
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2019-05/msg00017.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2019:3600
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3836Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://gitlab.com/gnutls/gnutls/issues/704Exploit, Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A3ETBUFBB4G7AITAOUYPGXVMBGVXKUAN/
secalert@redhat.comhttps://security.gentoo.org/glsa/201904-14Third Party Advisory
secalert@redhat.comhttps://security.netapp.com/advisory/ntap-20190502-0005/Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/3999-1/
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00017.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:3600
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3836Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://gitlab.com/gnutls/gnutls/issues/704Exploit, Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A3ETBUFBB4G7AITAOUYPGXVMBGVXKUAN/
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/201904-14Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20190502-0005/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/3999-1/
Impacted products
Vendor Product Version
gnu gnutls *
fedoraproject fedora 28
opensuse leap 15.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "gnutls",
          "vendor": "gnutls",
          "versions": [
            {
              "status": "affected",
              "version": "fixed in gnutls 3.6.7"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
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              "criteria": "cpe:2.3:a:gnu:gnutls:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EE69D892-FC7F-4CBC-ADCD-1A45B18B6827",
              "versionEndExcluding": "3.6.7",
              "versionStartIncluding": "3.6.3",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    },
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              "matchCriteriaId": "DC1BD7B7-6D88-42B8-878E-F1318CA5FCAF",
              "vulnerable": true
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    {
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              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "It was discovered in gnutls before version 3.6.7 upstream that there is an uninitialized pointer access in gnutls versions 3.6.3 or later which can be triggered by certain post-handshake messages."
    },
    {
      "lang": "es",
      "value": "Se descubri\u00f3 en gnutls, antes de la versi\u00f3n 3.6.7 upstream, que hay un acceso de puntero no inicializado en gnutls, en versiones 3.6.4 o posteriores, que puede desencadenarse por determinados mensajes \"post-handshake\"."
    }
  ],
  "id": "CVE-2019-3836",
  "lastModified": "2026-06-17T02:35:41.500",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 5.9,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.0"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 3.6,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      },
      {
        "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": "2019-04-01T15:29:01.060",
  "references": [
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
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      "url": "http://lists.opensuse.org/opensuse-security-announce/2019-05/msg00017.html"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2019:3600"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Issue Tracking",
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      ],
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3836"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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      ],
      "url": "https://gitlab.com/gnutls/gnutls/issues/704"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A3ETBUFBB4G7AITAOUYPGXVMBGVXKUAN/"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
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    },
    {
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      "url": "https://security.netapp.com/advisory/ntap-20190502-0005/"
    },
    {
      "source": "secalert@redhat.com",
      "url": "https://usn.ubuntu.com/3999-1/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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    {
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      "url": "https://access.redhat.com/errata/RHSA-2019:3600"
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      "tags": [
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      "url": "https://gitlab.com/gnutls/gnutls/issues/704"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/A3ETBUFBB4G7AITAOUYPGXVMBGVXKUAN/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://security.netapp.com/advisory/ntap-20190502-0005/"
    },
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      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://usn.ubuntu.com/3999-1/"
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  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-456"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-824"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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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

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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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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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.