{
  "schema_version": "1.4.0",
  "id": "GHSA-fp4r-m88r-wmm8",
  "modified": "2025-04-20T03:30:48Z",
  "published": "2022-05-13T01:05:09Z",
  "aliases": [
    "CVE-2016-1548"
  ],
  "details": "An attacker can spoof a packet from a legitimate ntpd server with an origin timestamp that matches the peer->dst timestamp recorded for that server. After making this switch, the client in NTP 4.2.8p4 and earlier and NTPSec aa48d001683e5b791a743ec9c575aaf7d867a2b0c will reject all future legitimate server responses. It is possible to force the victim client to move time after the mode has been changed. ntpq gives no indication that the mode has been switched.",
  "severity": [
    {
      "type": "CVSS_V3",
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L"
    }
  ],
  "affected": [],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-1548"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2016:1141"
    },
    {
      "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://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201607-15"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20171004-0002"
    },
    {
      "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.arista.com/en/support/advisories-notices/security-advisories/1332-security-advisory-19"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2016/dsa-3629"
    },
    {
      "type": "WEB",
      "url": "https://www.kb.cert.org/vuls/id/718152"
    },
    {
      "type": "WEB",
      "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2016-0082"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183647.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184669.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00034.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00037.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00052.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00001.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/2016-07/msg00026.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.html"
    },
    {
      "type": "WEB",
      "url": "http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/136864/Slackware-Security-Advisory-ntp-Updates.html"
    },
    {
      "type": "WEB",
      "url": "http://rhn.redhat.com/errata/RHSA-2016-1552.html"
    },
    {
      "type": "WEB",
      "url": "http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160428-ntpd"
    },
    {
      "type": "WEB",
      "url": "http://www.debian.org/security/2016/dsa-3629"
    },
    {
      "type": "WEB",
      "url": "http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html"
    },
    {
      "type": "WEB",
      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/538233/100/0/threaded"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/archive/1/archive/1/538233/100/0/threaded"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/88264"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1035705"
    },
    {
      "type": "WEB",
      "url": "http://www.talosintelligence.com/reports/TALOS-2016-0082"
    },
    {
      "type": "WEB",
      "url": "http://www.ubuntu.com/usn/USN-3096-1"
    }
  ],
  "database_specific": {
    "cwe_ids": [],
    "severity": "HIGH",
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-01-06T21:59:00Z"
  }
}