{"id":"CVE-2017-6458","aliases":["DEBIAN-CVE-2017-6458","EUVD-2017-15515","GHSA-q29q-rg5m-wg5j","MGASA-2017-0134","SUSE-SU-2017:1047-1","SUSE-SU-2017:1048-1","SUSE-SU-2017:1052-1","UBUNTU-CVE-2017-6458","USN-3349-1","openSUSE-SU-2024:11102-1"],"status":"published","title":"Multiple buffer overflows in the ctl_put* functions in NTP before 4.2.8p10 and 4.3.x before 4.3...","description":"Multiple buffer overflows in the ctl_put* functions in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allow remote authenticated users to have unspecified impact via a long variable.","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.06515,"percentile":0.93823,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-119"],"published":"2017-03-27T00:00:00Z","modified":"2026-08-04T05:48:30Z","fixes":[{"ecosystem":"Debian:11","package":"ntp","fixed_in":["1:4.2.8p10+dfsg-1"],"sources":["osv"]},{"ecosystem":"Ubuntu:14.04:LTS","package":"ntp","fixed_in":["1:4.2.6.p5+dfsg-3ubuntu2.14.04.11"],"sources":["osv"]},{"ecosystem":"Ubuntu:16.04:LTS","package":"ntp","fixed_in":["1:4.2.8p4+dfsg-3ubuntu5.5"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:11","package":"ntp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:4.2.8p10+dfsg-1"}]}]},{"source":"osv","ecosystem":"Mageia:5","package":"ntp","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.2.6p5-24.8.mga5"}]}],"bundled":5},{"source":"osv","ecosystem":"SUSE:Linux 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Advisory","advisory","web"]},{"url":"https://support.apple.com/kb/HT208144","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://www.ubuntu.com/usn/USN-3349-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred","advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZUPPICJXWL3AWQB7I3AWUC74YON7UING/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2017-294/","tags":["x_refsource_CONFIRM","x_transferred","advisory"]},{"url":"https://bto.bluecoat.com/security-advisory/sa147","tags":["x_refsource_CONFIRM","x_transferred","advisory"]},{"url":"http://seclists.org/fulldisclosure/2017/Nov/7","tags":["mailing-list","x_refsource_FULLDISC","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KVLFA3J43QFIP4I7HE7KQ5FXSMJEKC6/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://support.f5.com/csp/article/K99254031","tags":["x_refsource_CONFIRM","x_transferred","web"]},{"url":"http://packetstormsecurity.com/files/142284/Slackware-Security-Advisory-ntp-Updates.html","tags":["x_refsource_MISC","x_transferred","web"]},{"url":"http://seclists.org/fulldisclosure/2017/Sep/62","tags":["mailing-list","x_refsource_FULLDISC","x_transferred","web"]},{"url":"http://www.securityfocus.com/archive/1/archive/1/540464/100/0/threaded","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","web"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4B7BMVXV53EE7XYW2KAVETDHTP452O3Z/","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred","web"]},{"url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03962en_us","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory"]},{"url":"https://cert-portal.siemens.com/productcert/pdf/ssa-211752.pdf","tags":["x_refsource_CONFIRM","x_transferred","Third Party Advisory","advisory"]},{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-159-11","tags":["x_refsource_MISC","x_transferred","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2017-6458"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4B7BMVXV53EE7XYW2KAVETDHTP452O3Z"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7KVLFA3J43QFIP4I7HE7KQ5FXSMJEKC6"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZUPPICJXWL3AWQB7I3AWUC74YON7UING"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/4B7BMVXV53EE7XYW2KAVETDHTP452O3Z"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/7KVLFA3J43QFIP4I7HE7KQ5FXSMJEKC6"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZUPPICJXWL3AWQB7I3AWUC74YON7UING"},{"url":"https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2017-294"},{"url":"https://github.com/advisories/GHSA-q29q-rg5m-wg5j"},{"url":"https://security-tracker.debian.org/tracker/CVE-2017-6458","tags":["advisory"]},{"url":"https://advisories.mageia.org/MGASA-2017-0134.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=20595","tags":["report"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/thread/4B7BMVXV53EE7XYW2KAVETDHTP452O3Z/","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2017/suse-su-20171047-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1014172","tags":["report"]},{"url":"https://bugzilla.suse.com/1030050","tags":["report"]},{"url":"https://www.suse.com/security/cve/CVE-2016-9042","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-6451","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-6458","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-6460","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-6462","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-6463","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2017-6464","tags":["web"]},{"url":"https://www.suse.com/support/update/announcement/2017/suse-su-20171048-1/","tags":["advisory"]},{"url":"https://www.suse.com/support/update/announcement/2017/suse-su-20171052-1/","tags":["advisory"]},{"url":"https://bugzilla.suse.com/1031085","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6458","tags":["report"]},{"url":"https://ubuntu.com/security/notices/USN-3349-1","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2017-6458","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-2519","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-7426","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-7427","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-7428","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-7429","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-7431","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-7433","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-7434","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-9042","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-9310","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2016-9311","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6460","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6462","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6463","tags":["report"]},{"url":"https://ubuntu.com/security/CVE-2017-6464","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2018-12327","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7170","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7182","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7183","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7184","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-7185","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2018-8956","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2019-8936","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-11868","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-13817","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2020-15025","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2017-6458","description":"Multiple buffer overflows in the ctl_put* functions in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allow remote authenticated users to have unspecified impact via a long variable.","status":"published","published":"2017-03-27T17:00:00Z","modified":"2024-08-05T15:33:19.812Z","updated_at":"2026-11-02T14:33:16.578111Z"}],"euvd":[{"id":"EUVD-2017-15515","description":"Multiple buffer overflows in the ctl_put* functions in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allow remote authenticated users to have unspecified impact via a long variable.","status":"published","published":"2017-03-27T17:00:00Z","modified":"2024-08-05T15:33:19Z","updated_at":"2026-11-03T02:39:12.564822Z"}],"ghsa":[{"id":"GHSA-q29q-rg5m-wg5j","title":"Multiple buffer overflows in the ctl_put* functions in NTP before 4.2.8p10 and 4.3.x before 4.3...","description":"Multiple buffer overflows in the ctl_put* functions in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allow remote authenticated users to have unspecified impact via a long variable.","status":"published","published":"2022-05-13T01:08:50Z","modified":"2025-04-20T03:35:54Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:01:43.480751Z"}],"nvd":[{"id":"CVE-2017-6458","description":"Multiple buffer overflows in the ctl_put* functions in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allow remote authenticated users to have unspecified impact via a long variable.","status":"published","published":"2017-03-27T17:59:00.633Z","modified":"2026-06-17T01:22:22.633Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:03:44.275273Z"}],"osv":[{"id":"CVE-2017-6458","description":"Multiple buffer overflows in the ctl_put* functions in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allow remote authenticated users to have unspecified impact via a long variable.","status":"published","published":"2017-03-27T17:59:00.633Z","modified":"2026-04-16T06:16:06.370077126Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:06.412595Z"},{"id":"DEBIAN-CVE-2017-6458","description":"Multiple buffer overflows in the ctl_put* functions in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allow remote authenticated users to have unspecified impact via a long variable.","status":"published","published":"2017-03-27T17:59:00.633Z","modified":"2026-08-04T05:48:30.707695548Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:29.412243Z"},{"id":"UBUNTU-CVE-2017-6458","description":"Multiple buffer overflows in the ctl_put* functions in NTP before 4.2.8p10 and 4.3.x before 4.3.94 allow remote authenticated users to have unspecified impact via a long variable.","status":"published","published":"2017-03-27T00:00:00Z","modified":"2026-02-04T02:45:44.053392Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"},{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:54:15.773974Z"},{"id":"MGASA-2017-0134","title":"Updated ntp packages fix security vulnerability","description":"A vulnerability was found in NTP, in the legacy MX4200 refclock\nimplementation. If this refclock was compiled in and used, an attacker may\nbe able to induce stack overflow, leading to a crash or potential code\nexecution (CVE-2017-6451).\n\nA vulnerability was found in NTP, in the building of response packets with\ncustom fields. If custom fields were configured in ntp.conf with\nparticularly long names, inclusion of these fields in the response packet\ncould cause a buffer overflow, leading to a crash (CVE-2017-6458).\n\nA vulnerability was found in NTP, in the parsing of packets from the\n/dev/datum device. A malicious device could send crafted messages, causing\nntpd to crash (CVE-2017-6462).\n\nA vulnerability was discovered in the NTP server's parsing of\nconfiguration directives. A remote, authenticated attacker could cause\nntpd to crash by sending a crafted message (CVE-2017-6463).\n\nA vulnerability was discovered in the NTP server's parsing of\nconfiguration directives. A remote, authenticated attacker could cause\nntpd to crash by sending a crafted message (CVE-2017-6464).\n","status":"published","published":"2017-05-09T06:35:29Z","modified":"2026-04-16T06:23:21.597234861Z","updated_at":"2026-11-02T15:49:40.103088Z"},{"id":"openSUSE-SU-2024:11102-1","title":"ntp-4.2.8p15-7.2 on GA media","description":"These are all security issues fixed in the ntp-4.2.8p15-7.2 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2024-06-15T00:00:00Z","modified":"2026-02-04T04:08:15.257534Z","updated_at":"2026-11-02T16:58:34.894275Z"},{"id":"SUSE-SU-2017:1047-1","title":"Security update for ntp","description":"\nThis ntp update to version 4.2.8p10 fixes serveral issues.\n\nThis updated enables leap smearing. See\n/usr/share/doc/packages/ntp/README.leapsmear for details.\n\nSecurity issues fixed (bsc#1030050):\n\n- CVE-2017-6464: Denial of Service via Malformed Config\n- CVE-2017-6462: Buffer Overflow in DPTS Clock\n- CVE-2017-6463: Authenticated DoS via Malicious Config Option\n- CVE-2017-6458: Potential Overflows in ctl_put() functions\n- CVE-2017-6451: Improper use of snprintf() in mx4200_send()\n- CVE-2017-6460: Buffer Overflow in ntpq when fetching reslist\n- CVE-2016-9042: 0rigin (zero origin) DoS.\n- ntpq_stripquotes() returns incorrect Value\n- ereallocarray()/eallocarray() underused\n- Copious amounts of Unused Code\n- Off-by-one in Oncore GPS Receiver\n- Makefile does not enforce Security Flags\n\nBugfixes:\n\n- Remove spurious log messages (bsc#1014172).\n- clang scan-build findings\n- Support for openssl-1.1.0 without compatibility modes\n- Bugfix 3072 breaks multicastclient\n- forking async worker: interrupted pipe I/O\n- (...) time_pps_create: Exec format error\n- Incorrect Logic for Peer Event Limiting\n- Change the process name of forked DNS worker\n- Trap Configuration Fail\n- Nothing happens if minsane \u003c maxclock \u003c minclock\n- allow -4/-6 on restrict line with mask\n- out-of-bound pointers in ctl_putsys and decode_bitflags\n- Move ntp-kod to /var/lib/ntp, because /var/db is not a standard directory and causes problems for\n  transactional updates.\n","status":"published","published":"2017-04-18T14:06:17Z","modified":"2026-02-04T02:21:45.857408Z","updated_at":"2026-11-02T15:53:43.83457Z"},{"id":"SUSE-SU-2017:1048-1","title":"Security update for ntp","description":"\nThis ntp update to version 4.2.8p10 fixes serveral issues.\n\nThis updated enables leap smearing. See\n/usr/share/doc/packages/ntp/README.leapsmear for details.\n\nSecurity issues fixed (bsc#1030050):\n\n- CVE-2017-6464: Denial of Service via Malformed Config\n- CVE-2017-6462: Buffer Overflow in DPTS Clock\n- CVE-2017-6463: Authenticated DoS via Malicious Config Option\n- CVE-2017-6458: Potential Overflows in ctl_put() functions\n- CVE-2017-6451: Improper use of snprintf() in mx4200_send()\n- CVE-2017-6460: Buffer Overflow in ntpq when fetching reslist\n- CVE-2016-9042: 0rigin (zero origin) DoS.\n- ntpq_stripquotes() returns incorrect Value\n- ereallocarray()/eallocarray() underused\n- Copious amounts of Unused Code\n- Off-by-one in Oncore GPS Receiver\n- Makefile does not enforce Security Flags\n\nBugfixes:\n\n- Remove spurious log messages (bsc#1014172).\n- clang scan-build findings\n- Support for openssl-1.1.0 without compatibility modes\n- Bugfix 3072 breaks multicastclient\n- forking async worker: interrupted pipe I/O\n- (...) time_pps_create: Exec format error\n- Incorrect Logic for Peer Event Limiting\n- Change the process name of forked DNS worker\n- Trap Configuration Fail\n- Nothing happens if minsane \u003c maxclock \u003c minclock\n- allow -4/-6 on restrict line with mask\n- out-of-bound pointers in ctl_putsys and decode_bitflags\n- Move ntp-kod to /var/lib/ntp, because /var/db is not a standard directory and causes problems for\n  transactional updates.\n","status":"published","published":"2017-04-18T14:06:01Z","modified":"2026-02-04T03:40:36.128491Z","updated_at":"2026-11-02T15:53:43.83457Z"},{"id":"SUSE-SU-2017:1052-1","title":"Security update for ntp","description":"\nThis ntp update to version 4.2.8p10 fixes the following issues:\n\nSecurity issues fixed (bsc#1030050):\n- CVE-2017-6464: Denial of Service via Malformed Config\n- CVE-2017-6462: Buffer Overflow in DPTS Clock\n- CVE-2017-6463: Authenticated DoS via Malicious Config Option\n- CVE-2017-6458: Potential Overflows in ctl_put() functions\n- CVE-2017-6451: Improper use of snprintf() in mx4200_send()\n- CVE-2017-6460: Buffer Overflow in ntpq when fetching reslist\n- CVE-2016-9042: 0rigin (zero origin) DoS.\n- ntpq_stripquotes() returns incorrect Value\n- ereallocarray()/eallocarray() underused\n- Copious amounts of Unused Code\n- Off-by-one in Oncore GPS Receiver\n- Makefile does not enforce Security Flags\n\nBugfixes:\n- Remove spurious log messages (bsc#1014172).\n- Fixing ppc and ppc64 linker issue (bsc#1031085).\n- clang scan-build findings\n- Support for openssl-1.1.0 without compatibility modes\n- Bugfix 3072 breaks multicastclient\n- forking async worker: interrupted pipe I/O\n- (...) time_pps_create: Exec format error\n- Incorrect Logic for Peer Event Limiting\n- Change the process name of forked DNS worker\n- Trap Configuration Fail\n- Nothing happens if minsane \u003c maxclock \u003c minclock\n- allow -4/-6 on restrict line with mask\n- out-of-bound pointers in ctl_putsys and decode_bitflags\n- Move ntp-kod to /var/lib/ntp, because /var/db is not a standard directory and causes problems for\n  transactional updates.\n","status":"published","published":"2017-04-18T14:06:55Z","modified":"2026-02-04T03:30:54.871081Z","updated_at":"2026-11-02T15:53:43.83457Z"},{"id":"USN-3349-1","title":"ntp vulnerabilities","description":"Yihan Lian discovered that NTP incorrectly handled certain large request\ndata values. A remote attacker could possibly use this issue to cause NTP\nto crash, resulting in a denial of service. This issue only affected\nUbuntu 16.04 LTS. (CVE-2016-2519)\n\nMiroslav Lichvar discovered that NTP incorrectly handled certain spoofed\naddresses when performing rate limiting. A remote attacker could possibly\nuse this issue to perform a denial of service. This issue only affected\nUbuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 16.10. (CVE-2016-7426)\n\nMatthew Van Gundy discovered that NTP incorrectly handled certain crafted\nbroadcast mode packets. A remote attacker could possibly use this issue to\nperform a denial of service. This issue only affected Ubuntu 14.04 LTS,\nUbuntu 16.04 LTS, and Ubuntu 16.10. (CVE-2016-7427, CVE-2016-7428)\n\nMiroslav Lichvar discovered that NTP incorrectly handled certain responses.\nA remote attacker could possibly use this issue to perform a denial of\nservice. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and\nUbuntu 16.10. (CVE-2016-7429)\n\nSharon Goldberg and Aanchal Malhotra discovered that NTP incorrectly\nhandled origin timestamps of zero. A remote attacker could possibly use\nthis issue to bypass the origin timestamp protection mechanism. This issue\nonly affected Ubuntu 16.10. (CVE-2016-7431)\n\nBrian Utterback, Sharon Goldberg and Aanchal Malhotra discovered that NTP\nincorrectly performed initial sync calculations. This issue only applied\nto Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-7433)\n\nMagnus Stubman discovered that NTP incorrectly handled certain mrulist\nqueries. A remote attacker could possibly use this issue to cause NTP to\ncrash, resulting in a denial of service. This issue only affected Ubuntu\n16.04 LTS and Ubuntu 16.10. (CVE-2016-7434)\n\nMatthew Van Gund discovered that NTP incorrectly handled origin timestamp\nchecks. A remote attacker could possibly use this issue to perform a denial\nof service. This issue only affected Ubuntu Ubuntu 16.10, and Ubuntu 17.04.\n(CVE-2016-9042)\n\nMatthew Van Gundy discovered that NTP incorrectly handled certain control\nmode packets. A remote attacker could use this issue to set or unset traps.\nThis issue only applied to Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu\n16.10. (CVE-2016-9310)\n\nMatthew Van Gundy discovered that NTP incorrectly handled the trap service.\nA remote attacker could possibly use this issue to cause NTP to crash,\nresulting in a denial of service. This issue only applied to Ubuntu 14.04\nLTS, Ubuntu 16.04 LTS and Ubuntu 16.10. (CVE-2016-9311)\n\nIt was discovered that NTP incorrectly handled memory when processing long\nvariables. A remote authenticated user could possibly use this issue to\ncause NTP to crash, resulting in a denial of service. (CVE-2017-6458)\n\nIt was discovered that NTP incorrectly handled memory when processing long\nvariables. A remote authenticated user could possibly use this issue to\ncause NTP to crash, resulting in a denial of service. This issue only\napplied to Ubuntu 16.04 LTS, Ubuntu 16.10 and Ubuntu 17.04. (CVE-2017-6460)\n\nIt was discovered that the NTP legacy DPTS refclock driver incorrectly\nhandled the /dev/datum device. A local attacker could possibly use this\nissue to cause a denial of service. (CVE-2017-6462)\n\nIt was discovered that NTP incorrectly handled certain invalid settings\nin a :config directive. A remote authenticated user could possibly use\nthis issue to cause NTP to crash, resulting in a denial of service.\n(CVE-2017-6463)\n\nIt was discovered that NTP incorrectly handled certain invalid mode\nconfiguration directives. A remote authenticated user could possibly use\nthis issue to cause NTP to crash, resulting in a denial of service.\n(CVE-2017-6464)\n","status":"published","published":"2017-07-05T18:19:15Z","modified":"2026-02-10T04:41:09Z","updated_at":"2026-11-02T16:58:13.496563Z"}]}}