CVE-2018-7185

The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service (disruption) by continually sending a packet with a zero-origin timestamp and source IP address of the "other side" of an interleaved association causing the victim ntpd to reset its association.

• http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.htmlThird Party Advisory, VDB Entry
• http://support.ntp.org/bin/view/Main/NtpBug3454Mitigation, Vendor Advisory
• http://www.securityfocus.com/archive/1/541824/100/0/threadedThird Party Advisory, VDB Entry
• http://www.securityfocus.com/bid/103339Third Party Advisory, VDB Entry
• https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.ascThird Party Advisory
• https://security.gentoo.org/glsa/201805-12Third 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_usThird Party Advisory
• https://usn.ubuntu.com/3707-1/Third Party Advisory
• https://usn.ubuntu.com/3707-2/Third Party Advisory
• https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlThird Party Advisory
• https://www.synology.com/support/security/Synology_SA_18_13Third Party Advisory
• http://packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.htmlThird Party Advisory, VDB Entry
• http://support.ntp.org/bin/view/Main/NtpBug3454Mitigation, Vendor Advisory
• http://www.securityfocus.com/archive/1/541824/100/0/threadedThird Party Advisory, VDB Entry
• http://www.securityfocus.com/bid/103339Third Party Advisory, VDB Entry
• https://security.FreeBSD.org/advisories/FreeBSD-SA-18:02.ntp.ascThird Party Advisory
• https://security.gentoo.org/glsa/201805-12Third 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_usThird Party Advisory
• https://usn.ubuntu.com/3707-1/Third Party Advisory
• https://usn.ubuntu.com/3707-2/Third Party Advisory
• https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.htmlThird Party Advisory
• https://www.synology.com/support/security/Synology_SA_18_13Third Party Advisory

Published

Mar 6, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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