{
  "document": {
    "aggregate_severity": {
      "text": "High"
    },
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "TuxCare License Agreement",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.",
        "title": "Terms of Use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://tuxcare.com/contact/",
      "name": "TuxCare",
      "namespace": "https://tuxcare.com/"
    },
    "references": [
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/centos6els/vex/2018/cve-2018-7185-els_os-centos6els.json"
      }
    ],
    "tracking": {
      "current_release_date": "2026-04-17T21:02:53Z",
      "generator": {
        "date": "2026-04-17T21:02:53Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CVE-2018-7185-ELS_OS-CENTOS6ELS",
      "initial_release_date": "2018-03-06T20:29:00Z",
      "revision_history": [
        {
          "date": "2018-03-06T20:29:00Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-04-17T20:46:25Z",
          "number": "2",
          "summary": "Official Publication"
        },
        {
          "date": "2026-04-17T20:56:03Z",
          "number": "3",
          "summary": "Update document"
        },
        {
          "date": "2026-04-17T21:02:53Z",
          "number": "4",
          "summary": "Update document"
        }
      ],
      "status": "final",
      "version": "4"
    },
    "title": "Security update on CVE-2018-7185"
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Community Enterprise Operating System 6",
                "product": {
                  "name": "Community Enterprise Operating System 6",
                  "product_id": "CentOS-6",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:o:centos:centos:6:*:*:*:*:*:*:*"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "Community Enterprise Operating System"
          }
        ],
        "category": "vendor",
        "name": "Red Hat, Inc."
      },
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "ntp-perl-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
                "product": {
                  "name": "ntp-perl-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
                  "product_id": "ntp-perl-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/cloudlinux/ntp-perl@4.2.6p5-16.el6.tuxcare.els1?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "ntp-perl-0:4.2.6p5-16.el6.cloudlinux.els.x86_64",
                "product": {
                  "name": "ntp-perl-0:4.2.6p5-16.el6.cloudlinux.els.x86_64",
                  "product_id": "ntp-perl-0:4.2.6p5-16.el6.cloudlinux.els.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/cloudlinux/ntp-perl@4.2.6p5-16.el6.cloudlinux.els?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "ntpdate-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
                "product": {
                  "name": "ntpdate-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
                  "product_id": "ntpdate-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/cloudlinux/ntpdate@4.2.6p5-16.el6.tuxcare.els1?arch=x86_64"
                  }
                }
              },
              {
                "category": "product_version",
                "name": "ntp-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
                "product": {
                  "name": "ntp-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
                  "product_id": "ntp-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/cloudlinux/ntp@4.2.6p5-16.el6.tuxcare.els1?arch=x86_64"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "ntp-doc-0:4.2.6p5-16.el6.tuxcare.els1.noarch",
                "product": {
                  "name": "ntp-doc-0:4.2.6p5-16.el6.tuxcare.els1.noarch",
                  "product_id": "ntp-doc-0:4.2.6p5-16.el6.tuxcare.els1.noarch",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/cloudlinux/ntp-doc@4.2.6p5-16.el6.tuxcare.els1?arch=noarch"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "noarch"
          }
        ],
        "category": "vendor",
        "name": "CloudLinux"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "ntp-perl-0:4.2.6p5-16.el6.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 6",
          "product_id": "CentOS-6:ntp-perl-0:4.2.6p5-16.el6.tuxcare.els1.x86_64"
        },
        "product_reference": "ntp-perl-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
        "relates_to_product_reference": "CentOS-6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "ntp-perl-0:4.2.6p5-16.el6.cloudlinux.els.x86_64 as a component of Community Enterprise Operating System 6",
          "product_id": "CentOS-6:ntp-perl-0:4.2.6p5-16.el6.cloudlinux.els.x86_64"
        },
        "product_reference": "ntp-perl-0:4.2.6p5-16.el6.cloudlinux.els.x86_64",
        "relates_to_product_reference": "CentOS-6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "ntpdate-0:4.2.6p5-16.el6.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 6",
          "product_id": "CentOS-6:ntpdate-0:4.2.6p5-16.el6.tuxcare.els1.x86_64"
        },
        "product_reference": "ntpdate-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
        "relates_to_product_reference": "CentOS-6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "ntp-0:4.2.6p5-16.el6.tuxcare.els1.x86_64 as a component of Community Enterprise Operating System 6",
          "product_id": "CentOS-6:ntp-0:4.2.6p5-16.el6.tuxcare.els1.x86_64"
        },
        "product_reference": "ntp-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
        "relates_to_product_reference": "CentOS-6"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "ntp-doc-0:4.2.6p5-16.el6.tuxcare.els1.noarch as a component of Community Enterprise Operating System 6",
          "product_id": "CentOS-6:ntp-doc-0:4.2.6p5-16.el6.tuxcare.els1.noarch"
        },
        "product_reference": "ntp-doc-0:4.2.6p5-16.el6.tuxcare.els1.noarch",
        "relates_to_product_reference": "CentOS-6"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2018-7185",
      "notes": [
        {
          "category": "description",
          "text": "The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service (disruption) by continually sending a packet with a zero-origin timestamp and source IP address of the \"other side\" of an interleaved association causing the victim ntpd to reset its association.",
          "title": "Vulnerability description"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "under_investigation": [
          "CentOS-6:ntp-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
          "CentOS-6:ntp-doc-0:4.2.6p5-16.el6.tuxcare.els1.noarch",
          "CentOS-6:ntp-perl-0:4.2.6p5-16.el6.cloudlinux.els.x86_64",
          "CentOS-6:ntp-perl-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
          "CentOS-6:ntpdate-0:4.2.6p5-16.el6.tuxcare.els1.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2018-7185"
        },
        {
          "category": "external",
          "summary": "http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html",
          "url": "http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html"
        },
        {
          "category": "external",
          "summary": "http://support.ntp.org/bin/view/Main/NtpBug3454",
          "url": "http://support.ntp.org/bin/view/Main/NtpBug3454"
        },
        {
          "category": "external",
          "summary": "http://www.securityfocus.com/archive/1/541824/100/0/threaded",
          "url": "http://www.securityfocus.com/archive/1/541824/100/0/threaded"
        },
        {
          "category": "external",
          "summary": "http://www.securityfocus.com/bid/103339",
          "url": "http://www.securityfocus.com/bid/103339"
        },
        {
          "category": "external",
          "summary": "https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc",
          "url": "https://security.freebsd.org/advisories/FreeBSD-SA-18:02.ntp.asc"
        },
        {
          "category": "external",
          "summary": "https://security.gentoo.org/glsa/201805-12",
          "url": "https://security.gentoo.org/glsa/201805-12"
        },
        {
          "category": "external",
          "summary": "https://security.netapp.com/advisory/ntap-20180626-0001/",
          "url": "https://security.netapp.com/advisory/ntap-20180626-0001/"
        },
        {
          "category": "external",
          "summary": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us",
          "url": "https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us"
        },
        {
          "category": "external",
          "summary": "https://usn.ubuntu.com/3707-1/",
          "url": "https://usn.ubuntu.com/3707-1/"
        },
        {
          "category": "external",
          "summary": "https://usn.ubuntu.com/3707-2/",
          "url": "https://usn.ubuntu.com/3707-2/"
        },
        {
          "category": "external",
          "summary": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html",
          "url": "https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html"
        },
        {
          "category": "external",
          "summary": "https://www.synology.com/support/security/Synology_SA_18_13",
          "url": "https://www.synology.com/support/security/Synology_SA_18_13"
        },
        {
          "category": "external",
          "summary": "https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc",
          "url": "https://security.freebsd.org/advisories/FreeBSD-SA-18:02.ntp.asc"
        },
        {
          "category": "external",
          "summary": "https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc",
          "url": "https://security.freebsd.org/advisories/FreeBSD-SA-18:02.ntp.asc"
        }
      ],
      "release_date": "2018-03-06T20:29:00Z",
      "remediations": [
        {
          "category": "none_available",
          "details": "Affected",
          "product_ids": [
            "CentOS-6:ntp-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
            "CentOS-6:ntp-doc-0:4.2.6p5-16.el6.tuxcare.els1.noarch",
            "CentOS-6:ntp-perl-0:4.2.6p5-16.el6.cloudlinux.els.x86_64",
            "CentOS-6:ntp-perl-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
            "CentOS-6:ntpdate-0:4.2.6p5-16.el6.tuxcare.els1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 5.0,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
            "version": "2.0"
          },
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "CentOS-6:ntp-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
            "CentOS-6:ntp-doc-0:4.2.6p5-16.el6.tuxcare.els1.noarch",
            "CentOS-6:ntp-perl-0:4.2.6p5-16.el6.cloudlinux.els.x86_64",
            "CentOS-6:ntp-perl-0:4.2.6p5-16.el6.tuxcare.els1.x86_64",
            "CentOS-6:ntpdate-0:4.2.6p5-16.el6.tuxcare.els1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ]
    }
  ]
}