{
  "id": "CVE-2015-1799",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2015-04-08T10:59:05.717",
  "lastModified": "2018-01-05T02:30:00.447",
  "vulnStatus": "Modified",
  "descriptions": [
    {
      "lang": "en",
      "value": "The symmetric-key feature in the receive function in ntp_proto.c in ntpd in NTP 3.x and 4.x before 4.2.8p2 performs state-variable updates upon receiving certain invalid packets, which makes it easier for man-in-the-middle attackers to cause a denial of service (synchronization loss) by spoofing the source IP address of a peer."
    },
    {
      "lang": "es",
      "value": "La caracter\u00edstica symmetric-key en la funci\u00f3n receive en ntp_proto.c en ntpd en NTP 3.x y 4.x anterior a 4.2.8p2 realiza actualizaciones de las variables de estados al recibir ciertos paquetes inv\u00e1lidos, lo que facilita a atacantes man-in-the-middle causar una denegaci\u00f3n de servicio (perdida de sincronizaci\u00f3n) mediante la falsificaci\u00f3n de la direcci\u00f3n del IP de fuente de un par."
    }
  ],
  "metrics": {
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:A/AC:M/Au:N/C:N/I:P/A:P",
          "accessVector": "ADJACENT_NETWORK",
          "accessComplexity": "MEDIUM",
          "authentication": "NONE",
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 4.3
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 5.5,
        "impactScore": 4.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-17"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:ntp:ntp:*:*:*:*:*:*:*:*",
              "versionEndIncluding": "4.2.7p444",
              "matchCriteriaId": "E538FCAE-3E2C-4EA8-A74F-ABF47652C15C"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "http://bugs.ntp.org/show_bug.cgi?id=2781",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://listengine.tuxfamily.org/chrony.tuxfamily.org/chrony-announce/2015/04/msg00002.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lists.apple.com/archives/security-announce/2015/Jun/msg00002.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155863.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155864.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2015-04/msg00052.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://marc.info/?l=bugtraq&m=143213867103400&w=2",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://marc.info/?l=bugtraq&m=145750740530849&w=2",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2015-1459.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://support.apple.com/kb/HT204942",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities",
      "source": "secalert@redhat.com",
      "tags": [
        "Vendor Advisory"
      ]
    },
    {
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150408-ntpd",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=38275",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.debian.org/security/2015/dsa-3222",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.debian.org/security/2015/dsa-3223",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.kb.cert.org/vuls/id/374268",
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ]
    },
    {
      "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2015:202",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2015-2511959.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/73950",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1032031",
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2567-1",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://kc.mcafee.com/corporate/index?page=content&id=SB10114",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://security.gentoo.org/glsa/201509-01",
      "source": "secalert@redhat.com"
    }
  ]
}