{"id":"CVE-2015-7853","details":"The datalen parameter in the refclock driver in NTP 4.2.x before 4.2.8p4, and 4.3.x before 4.3.77 allows remote attackers to execute arbitrary code or cause a denial of service (crash) via a negative input value.","modified":"2026-04-16T01:41:03.925005757Z","published":"2017-08-07T20:29:00Z","withdrawn":"2026-01-27T04:15:09.916950Z","related":["SUSE-SU-2015:2058-1","SUSE-SU-2016:1247-1","SUSE-SU-2016:1311-1","openSUSE-SU-2024:10181-1"],"references":[{"type":"FIX","url":"http://support.ntp.org/bin/view/Main/NtpBug2920"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/77273"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1033951"},{"type":"ADVISORY","url":"http://www.ubuntu.com/usn/USN-2783-1"},{"type":"ADVISORY","url":"https://bto.bluecoat.com/security-advisory/sa103"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1274262"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201607-15"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20171004-0001/"},{"type":"ADVISORY","url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00020.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.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/2015-11/msg00093.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-updates/2016-05/msg00114.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/134082/FreeBSD-Security-Advisory-ntp-Authentication-Bypass.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/134137/Slackware-Security-Advisory-ntp-Updates.html"},{"type":"WEB","url":"http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20151021-ntp"},{"type":"WEB","url":"http://www.securityfocus.com/archive/1/536737/100/0/threaded"},{"type":"WEB","url":"http://www.securityfocus.com/archive/1/536760/100/0/threaded"},{"type":"WEB","url":"http://www.securityfocus.com/archive/1/536796/100/0/threaded"},{"type":"WEB","url":"http://www.securityfocus.com/archive/1/536833/100/0/threaded"},{"type":"WEB","url":"http://www.securityfocus.com/archive/1/archive/1/536737/100/100/threaded"},{"type":"WEB","url":"http://www.securityfocus.com/archive/1/archive/1/536760/100/100/threaded"},{"type":"WEB","url":"http://www.securityfocus.com/archive/1/archive/1/536796/100/100/threaded"},{"type":"WEB","url":"http://www.securityfocus.com/archive/1/archive/1/536833/100/100/threaded"},{"type":"WEB","url":"http://www.talosintel.com/vulnerability-reports/"},{"type":"WEB","url":"https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf"}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}