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CVE-2015-7705 (GCVE-0-2015-7705)

Vulnerability from cvelistv5 – Published: 2017-08-07 20:00 – Updated: 2024-08-06 07:58
VLAI
Summary
The rate limiting feature in NTP 4.x before 4.2.8p4 and 4.3.x before 4.3.77 allows remote attackers to have unspecified impact via a large number of crafted requests.
CWE
  • n/a
References
URL Tags
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://www.kb.cert.org/vuls/id/718152 third-party-advisoryx_refsource_CERT-VN
http://www.ubuntu.com/usn/USN-2783-1 vendor-advisoryx_refsource_UBUNTU
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://www.securityfocus.com/bid/77284 vdb-entryx_refsource_BID
https://support.citrix.com/article/CTX220112 x_refsource_CONFIRM
http://www.securitytracker.com/id/1033951 vdb-entryx_refsource_SECTRACK
http://support.ntp.org/bin/view/Main/SecurityNoti… x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://www.cs.bu.edu/~goldbe/NTPattack.html x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://eprint.iacr.org/2015/1020.pdf x_refsource_MISC
https://h20566.www2.hpe.com/portal/site/hpsc/publ… x_refsource_CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1274184 x_refsource_CONFIRM
http://support.ntp.org/bin/view/Main/NtpBug2901 x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-updates/2016-0… vendor-advisoryx_refsource_SUSE
https://security.gentoo.org/glsa/201607-15 vendor-advisoryx_refsource_GENTOO
https://security.netapp.com/advisory/ntap-2017100… x_refsource_CONFIRM
http://packetstormsecurity.com/files/134137/Slack… x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://tools.cisco.com/security/center/content/Ci… vendor-advisoryx_refsource_CISCO
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
https://bto.bluecoat.com/security-advisory/sa103 x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-updates/2015-1… vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou… vendor-advisoryx_refsource_SUSE
http://www.securityfocus.com/archive/1/536796/100… mailing-listx_refsource_BUGTRAQ
http://www.securityfocus.com/archive/1/archive/1/… mailing-listx_refsource_BUGTRAQ
http://www.securityfocus.com/archive/1/536737/100… mailing-listx_refsource_BUGTRAQ
http://www.securityfocus.com/archive/1/archive/1/… mailing-listx_refsource_BUGTRAQ
https://cert-portal.siemens.com/productcert/pdf/s… x_refsource_CONFIRM
https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11 x_refsource_MISC
https://cert-portal.siemens.com/productcert/pdf/s… x_refsource_CONFIRM
https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11 x_refsource_MISC
https://www.arista.com/en/support/advisories-noti… x_refsource_MISC
Date Public
2015-10-23 00:00
Show details on NVD website

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                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 9.8,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 5.9,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2017-08-07T20:29:00.730",
        "references": [
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-updates/2015-11/msg00093.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://packetstormsecurity.com/files/134137/Slackware-Security-Advisory-ntp-Updates.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://support.ntp.org/bin/view/Main/NtpBug2901"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "http://support.ntp.org/bin/view/Main/SecurityNotice#October_2015_NTP_4_2_8p4_Securit"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151021-ntp"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.securityfocus.com/archive/1/536737/100/0/threaded"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.securityfocus.com/archive/1/536796/100/0/threaded"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.securityfocus.com/archive/1/archive/1/536737/100/100/threaded"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.securityfocus.com/archive/1/archive/1/536796/100/100/threaded"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/77284"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securitytracker.com/id/1033951"
          },
          {
            "source": "cve@mitre.org",
            "url": "http://www.ubuntu.com/usn/USN-2783-1"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://bto.bluecoat.com/security-advisory/sa103"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Issue Tracking",
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1274184"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Technical Description"
            ],
            "url": "https://eprint.iacr.org/2015/1020.pdf"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05270839"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "https://security.gentoo.org/glsa/201607-15"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20171004-0001/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://support.citrix.com/article/CTX220112"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory",
              "US Government Resource"
            ],
            "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/1212-security-advisory-0016"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Not Applicable"
            ],
            "url": "https://www.cs.bu.edu/~goldbe/NTPattack.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory",
              "US Government Resource"
            ],
            "url": "https://www.kb.cert.org/vuls/id/718152"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.opensuse.org/opensuse-updates/2015-11/msg00093.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://packetstormsecurity.com/files/134137/Slackware-Security-Advisory-ntp-Updates.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://support.ntp.org/bin/view/Main/NtpBug2901"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Release Notes",
              "Vendor Advisory"
            ],
            "url": "http://support.ntp.org/bin/view/Main/SecurityNotice#October_2015_NTP_4_2_8p4_Securit"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151021-ntp"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/archive/1/536737/100/0/threaded"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/archive/1/536796/100/0/threaded"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/archive/1/archive/1/536737/100/100/threaded"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.securityfocus.com/archive/1/archive/1/536796/100/100/threaded"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securityfocus.com/bid/77284"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "http://www.securitytracker.com/id/1033951"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.ubuntu.com/usn/USN-2783-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://bto.bluecoat.com/security-advisory/sa103"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Issue Tracking",
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1274184"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Technical Description"
            ],
            "url": "https://eprint.iacr.org/2015/1020.pdf"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05270839"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "VDB Entry"
            ],
            "url": "https://security.gentoo.org/glsa/201607-15"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20171004-0001/"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://support.citrix.com/article/CTX220112"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "US Government Resource"
            ],
            "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://www.arista.com/en/support/advisories-notices/security-advisories/1212-security-advisory-0016"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Not Applicable"
            ],
            "url": "https://www.cs.bu.edu/~goldbe/NTPattack.html"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Third Party Advisory",
              "US Government Resource"
            ],
            "url": "https://www.kb.cert.org/vuls/id/718152"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-20"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-05-13T01:45:21+00:00",
      "cve": "CVE-2015-7705",
      "id": "CVE-2015-7705",
      "initial_release_date": "2015-10-21T00:00:00+00:00",
      "product_status:known_affected": "12",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "ntp: denial of service by trigerring rate limiting on NTP server",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2015/cve-2015-7705.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "critical",
      "current_release_date": "2026-09-05T23:57:43Z",
      "cve": "CVE-2015-7705",
      "id": "CVE-2015-7705",
      "initial_release_date": "2023-02-15T05:13:23Z",
      "product_status:known_affected": "1",
      "product_status:known_not_affected": "42",
      "product_status:recommended": "120",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2015-7705",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2015-7705.json",
      "version": "14"
    }
  }
}



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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.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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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Detection rules are retrieved from Rulezet.

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Related by attack behaviour

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.


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