CVEvulnerability
CVE-2016-2516
5.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2017-01-30
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 5.3 MEDIUM — CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 7.1 HIGH — AV:N/AC:M/Au:N/C:N/I:N/A:C
- Weaknesses
- CWE-20
Description
NTP before 4.2.8p7 and 4.3.x before 4.3.92, when mode7 is enabled, allows remote attackers to cause a denial of service (ntpd abort) by using the same IP address multiple times in an unconfig directive.
Affected configurations
• ntp ntp (<= 4.2.8)
• ntp ntp 4.3.0
• ntp ntp 4.3.1
• ntp ntp 4.3.2
• ntp ntp 4.3.3
• ntp ntp 4.3.4
• ntp ntp 4.3.5
• ntp ntp 4.3.6
• ntp ntp 4.3.7
• ntp ntp 4.3.8
• ntp ntp 4.3.9
• ntp ntp 4.3.10
• ntp ntp 4.3.11
• ntp ntp 4.3.12
• ntp ntp 4.3.13
• ntp ntp 4.3.14
• ntp ntp 4.3.15
• ntp ntp 4.3.16
• ntp ntp 4.3.17
• ntp ntp 4.3.18
• ntp ntp 4.3.19
• ntp ntp 4.3.20
• ntp ntp 4.3.21
• ntp ntp 4.3.22
• ntp ntp 4.3.23
• ntp ntp 4.3.24
• ntp ntp 4.3.25
• ntp ntp 4.3.26
• ntp ntp 4.3.27
• ntp ntp 4.3.28
• ntp ntp 4.3.29
• ntp ntp 4.3.30
• ntp ntp 4.3.31
• ntp ntp 4.3.32
• ntp ntp 4.3.33
• ntp ntp 4.3.34
• ntp ntp 4.3.35
• ntp ntp 4.3.36
• ntp ntp 4.3.37
• ntp ntp 4.3.38
• ntp ntp 4.3.39
• ntp ntp 4.3.40
• ntp ntp 4.3.41
• ntp ntp 4.3.42
• ntp ntp 4.3.43
• ntp ntp 4.3.44
• ntp ntp 4.3.45
• ntp ntp 4.3.46
• ntp ntp 4.3.47
• ntp ntp 4.3.48
• ntp ntp 4.3.49
• ntp ntp 4.3.50
• ntp ntp 4.3.51
• ntp ntp 4.3.52
• ntp ntp 4.3.53
• ntp ntp 4.3.54
• ntp ntp 4.3.55
• ntp ntp 4.3.56
• ntp ntp 4.3.57
• ntp ntp 4.3.58
… and 33 more
Related
Weakness · CWE (1)
- CWE-20 Improper Input Validation weakness
References
- http://support.ntp.org/bin/view/Main/NtpBug3011 Vendor Advisory
- http://www.debian.org/security/2016/dsa-3629 www.debian.org
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory
- http://www.securityfocus.com/bid/88180 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1035705 www.securitytracker.com
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc security.FreeBSD.org
- https://security.gentoo.org/glsa/201607-15 security.gentoo.org
- https://security.netapp.com/advisory/ntap-20171004-0002/ security.netapp.com
- https://www.kb.cert.org/vuls/id/718152 Third Party Advisory, US Government Resource
- http://support.ntp.org/bin/view/Main/NtpBug3011 Vendor Advisory
- http://www.debian.org/security/2016/dsa-3629 www.debian.org
- http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html Third Party Advisory
- http://www.securityfocus.com/bid/88180 Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1035705 www.securitytracker.com
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:16.ntp.asc security.FreeBSD.org
- https://security.gentoo.org/glsa/201607-15 security.gentoo.org
- https://security.netapp.com/advisory/ntap-20171004-0002/ security.netapp.com
- https://www.kb.cert.org/vuls/id/718152 Third Party Advisory, US Government Resource