CVEvulnerability
CVE-2018-7184
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2018-03-06
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 7.5 HIGH — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:N/A:P
Description
ntpd in ntp 4.2.8p4 before 4.2.8p11 drops bad packets before updating the "received" timestamp, which allows remote attackers to cause a denial of service (disruption) by sending a packet with a zero-origin timestamp causing the association to reset and setting the contents of the packet as the most recent timestamp. This issue is a result of an incomplete fix for CVE-2015-7704.
Affected configurations
• ntp ntp 4.2.8
• synology router manager 1.1
• synology skynas
• synology virtual diskstation manager
• synology diskstation manager 5.2
• synology diskstation manager 6.0
• synology diskstation manager 6.1
• synology vs960hd firmware
• slackware slackware linux 14.0
• slackware slackware linux 14.1
• slackware slackware linux 14.2
• canonical ubuntu linux 14.04
• canonical ubuntu linux 16.04
• canonical ubuntu linux 17.10
• canonical ubuntu linux 18.04
• netapp cloud backup
• netapp steelstore cloud integrated storage
References
- http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html Third Party Advisory, VDB Entry
- http://support.ntp.org/bin/view/Main/NtpBug3453 Third Party Advisory
- http://www.securityfocus.com/archive/1/541824/100/0/threaded Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/103192 Third Party Advisory, VDB Entry
- https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc Third Party Advisory
- https://security.gentoo.org/glsa/201805-12 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20180626-0001/ Third Party Advisory
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us support.hpe.com
- https://usn.ubuntu.com/3707-1/ Third Party Advisory
- https://www.synology.com/support/security/Synology_SA_18_13 Third Party Advisory
- http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.html Third Party Advisory, VDB Entry
- http://support.ntp.org/bin/view/Main/NtpBug3453 Third Party Advisory
- http://www.securityfocus.com/archive/1/541824/100/0/threaded Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/103192 Third Party Advisory, VDB Entry
- https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.asc Third Party Advisory
- https://security.gentoo.org/glsa/201805-12 Third Party Advisory
- https://security.netapp.com/advisory/ntap-20180626-0001/ Third Party Advisory
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03962en_us support.hpe.com
- https://usn.ubuntu.com/3707-1/ Third Party Advisory
- https://www.synology.com/support/security/Synology_SA_18_13 Third Party Advisory