Home/CVE/The protocol engine in ntp 4.2.6 before 4.2.8p11 allows a remote attackers to cause a denial of service (disruption) by
CVE

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

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.

HIGH · CVSS 7.5 EPSS 0.0292
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
▤

Affected Products & Versions

23
ntp>= 4.2.6 and < 4.2.8
ntpall versions
synology router manager>= 1.1 and < 1.1.6-6931-3
synology skynas< 6.1.5-15254
synology virtual diskstation manager< 6.1.6-15266
synology diskstation manager>= 5.2 and < 6.1.6-15266
synology vs960hd firmware< 2.2.3-1505
canonical ubuntu linuxall versions
⚠

Public Exploits & PoCs

1
pocpacketstormsecurity.com · Slackware-Security-Advisory-ntp-Updates.htmlpacketstormsecurity.com
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD06 Mar 2018 · 08:29 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

8
suse-csafopenSUSE-SU-2024:11102-1
usnUSN-3707-2
suse-csafSUSE-SU-2018:1765-2
usnUSN-3707-1
suse-csafSUSE-SU-2018:1765-1
🔗

References & Sources

11
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://support.ntp.org/bin/view/Main/NtpBug3454MitigationVendor Advisory
http://www.securityfocus.com/archive/1/541824/100/0/threadedThird Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/103339Third Party AdvisoryVDB 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
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