ghsa-w5gw-rhc6-c5g8
Vulnerability from github
Published
2022-05-13 01:08
Modified
2025-04-12 13:01
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details

The process_packet function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (peer-variable modification) by sending spoofed packets from many source IP addresses in a certain scenario, as demonstrated by triggering an incorrect leap indication.

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{
  "affected": [],
  "aliases": [
    "CVE-2016-4954"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2016-07-05T01:59:00Z",
    "severity": "HIGH"
  },
  "details": "The process_packet function in ntp_proto.c in ntpd in NTP 4.x before 4.2.8p8 allows remote attackers to cause a denial of service (peer-variable modification) by sending spoofed packets from many source IP addresses in a certain scenario, as demonstrated by triggering an incorrect leap indication.",
  "id": "GHSA-w5gw-rhc6-c5g8",
  "modified": "2025-04-12T13:01:47Z",
  "published": "2022-05-13T01:08:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-4954"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf"
    },
    {
      "type": "WEB",
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-497656.pdf"
    },
    {
      "type": "WEB",
      "url": "https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbhf03757en_us"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/K3EYJQHJZ2KTVQ7ICEFHXTLZ36MRASWX"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ORAMN3Q7TVJ54MBYF75XCJOE3DP7LYHT"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNWGCQLW2VY72NIUYMJOCAKJKTXHDUK2"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/K3EYJQHJZ2KTVQ7ICEFHXTLZ36MRASWX"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ORAMN3Q7TVJ54MBYF75XCJOE3DP7LYHT"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WNWGCQLW2VY72NIUYMJOCAKJKTXHDUK2"
    },
    {
      "type": "WEB",
      "url": "https://security.FreeBSD.org/advisories/FreeBSD-SA-16:24.ntp.asc"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201607-15"
    },
    {
      "type": "WEB",
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-103-11"
    },
    {
      "type": "WEB",
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11"
    },
    {
      "type": "WEB",
      "url": "https://www.kb.cert.org/vuls/id/321640"
    },
    {
      "type": "WEB",
      "url": "http://bugs.ntp.org/3044"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00018.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00020.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00023.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00024.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00028.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00040.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/137321/Slackware-Security-Advisory-ntp-Updates.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/137322/FreeBSD-Security-Advisory-FreeBSD-SA-16-24.ntp.html"
    },
    {
      "type": "WEB",
      "url": "http://support.ntp.org/bin/view/Main/NtpBug3044"
    },
    {
      "type": "WEB",
      "url": "http://support.ntp.org/bin/view/Main/SecurityNotice"
    },
    {
      "type": "WEB",
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160603-ntpd"
    },
    {
      "type": "WEB",
      "url": "http://www.kb.cert.org/vuls/id/321640"
    },
    {
      "type": "WEB",
      "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/538599/100/0/threaded"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/538600/100/0/threaded"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/540683/100/0/threaded"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/archive/1/538599/100/0/threaded"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/archive/1/538600/100/0/threaded"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/archive/1/540683/100/0/threaded"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1036037"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-3096-1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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