CVE-2016-7429

Name: CVE-2016-7429
Creator: NVD / NIST
Published: 2017-01-13T16:59:00.433+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 7.42%

Last modified Jun 17, 2026

CVE-2016-7429 is a vulnerability of currently unknown severity. NTP before 4.2.8p9 changes the peer structure to the interface it receives the response from a source, which allows remote attackers to cause a denial of service (prevent communication with a source) by sending a response for a source to an interface the source does not use.. EPSS estimates a 7.42% chance of exploitation in the next 30 days.

Description

NTP before 4.2.8p9 changes the peer structure to the interface it receives the response from a source, which allows remote attackers to cause a denial of service (prevent communication with a source) by sending a response for a source to an interface the source does not use.

Metrics

EPSS Probability

7.42%

93.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-18

Affected Software

Vendor	Product	Versions	Update
Ntp	Ntp	<= 4.2.8	P8

References

http://nwtime.org/ntp428p9_release/Release Notes, Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2017-0252.html
http://support.ntp.org/bin/view/Main/NtpBug3072Issue Tracking, Mitigation, Vendor Advisory
http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_VulnerabilitiesVendor Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.securityfocus.com/bid/94453
http://www.securitytracker.com/id/1037354
https://bto.bluecoat.com/security-advisory/sa139
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us
https://www.kb.cert.org/vuls/id/633847Third Party Advisory, US Government Resource
http://nwtime.org/ntp428p9_release/Release Notes, Vendor Advisory
http://rhn.redhat.com/errata/RHSA-2017-0252.html
http://support.ntp.org/bin/view/Main/NtpBug3072Issue Tracking, Mitigation, Vendor Advisory
http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_VulnerabilitiesVendor Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
http://www.securityfocus.com/bid/94453
http://www.securitytracker.com/id/1037354
https://bto.bluecoat.com/security-advisory/sa139
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us
https://www.kb.cert.org/vuls/id/633847Third Party Advisory, US Government Resource

Timeline

Published: Jan 13, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2016-7429?

How severe is CVE-2016-7429?

Severity scoring for CVE-2016-7429 is pending analysis. The EPSS model estimates a 7.42% probability of exploitation in the next 30 days.

How do I fix CVE-2016-7429?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2016-7429?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST