CVEvulnerability
CVE-2016-7426
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2017-01-13
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-400
Description
NTP before 4.2.8p9 rate limits responses received from the configured sources when rate limiting for all associations is enabled, which allows remote attackers to cause a denial of service (prevent responses from the sources) by sending responses with a spoofed source address.
Affected configurations
• ntp ntp (>= 4.2.6 < 4.2.8)
• ntp ntp (>= 4.3.0 < 4.3.94)
• ntp ntp 4.2.5
• ntp ntp 4.2.8
• canonical ubuntu linux 12.04
• redhat enterprise linux desktop 6.0
• redhat enterprise linux desktop 7.0
• redhat enterprise linux server 6.0
• redhat enterprise linux server 7.0
• redhat enterprise linux server aus 7.3
• redhat enterprise linux server aus 7.4
• redhat enterprise linux server aus 7.6
• redhat enterprise linux server aus 7.7
• redhat enterprise linux server eus 7.3
• redhat enterprise linux server eus 7.4
• redhat enterprise linux server eus 7.5
• redhat enterprise linux server eus 7.6
• redhat enterprise linux server eus 7.7
• redhat enterprise linux server tus 7.3
• redhat enterprise linux server tus 7.6
• redhat enterprise linux server tus 7.7
• redhat enterprise linux workstation 6.0
• redhat enterprise linux workstation 7.0
• hpe hpux-ntp (>= b.11.31 < c.4.2.8.2.0)
Related
Weakness · CWE (1)
- CWE-400 Uncontrolled Resource Consumption weakness
References
- http://nwtime.org/ntp428p9_release/ Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0252.html Third Party Advisory
- http://support.ntp.org/bin/view/Main/NtpBug3071 Issue Tracking, Mitigation, Vendor Advisory
- http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities Release Notes, Vendor Advisory
- http://www.securityfocus.com/bid/94451 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037354 Third Party Advisory, VDB Entry
- https://bto.bluecoat.com/security-advisory/sa139 Third Party Advisory
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us Third Party Advisory
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc Third Party Advisory
- https://usn.ubuntu.com/3707-2/ Third Party Advisory
- https://www.kb.cert.org/vuls/id/633847 Third Party Advisory, US Government Resource
- http://nwtime.org/ntp428p9_release/ Third Party Advisory
- http://rhn.redhat.com/errata/RHSA-2017-0252.html Third Party Advisory
- http://support.ntp.org/bin/view/Main/NtpBug3071 Issue Tracking, Mitigation, Vendor Advisory
- http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_Vulnerabilities Release Notes, Vendor Advisory
- http://www.securityfocus.com/bid/94451 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1037354 Third Party Advisory, VDB Entry
- https://bto.bluecoat.com/security-advisory/sa139 Third Party Advisory
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03706en_us Third Party Advisory
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:39.ntp.asc Third Party Advisory
- https://usn.ubuntu.com/3707-2/ Third Party Advisory
- https://www.kb.cert.org/vuls/id/633847 Third Party Advisory, US Government Resource