CVE-2016-9311

MediumCVSS 5.9/10Last modified Jun 17, 2026

Description

ntpd in NTP before 4.2.8p9, when the trap service is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a crafted packet.

Metrics

CVSS 3.0 5.9/10CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-476

Affected software

Vendor	Product	Versions
n/a	n/a	n/a

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/NtpBug3119Issue Tracking, Mitigation, Vendor Advisory
http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_VulnerabilitiesVendor Advisory
http://www.securityfocus.com/bid/94444Third Party Advisory, VDB Entry
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://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03799en_us
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03885en_us
https://usn.ubuntu.com/3707-2/
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/NtpBug3119Issue Tracking, Mitigation, Vendor Advisory
http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_VulnerabilitiesVendor Advisory
http://www.securityfocus.com/bid/94444Third Party Advisory, VDB Entry
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://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03799en_us
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03885en_us
https://usn.ubuntu.com/3707-2/
https://www.kb.cert.org/vuls/id/633847Third Party Advisory, US Government Resource

Timeline

Published: Jan 13, 2017
Last modified: Jun 17, 2026
NVD status: Modified

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