Vulnerability Description
The broadcast mode replay prevention functionality in ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (reject broadcast mode packets) via a crafted broadcast mode packet.
CVSS Score
4.3
MEDIUM
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ntp | Ntp | 4.2.8 |
Related Weaknesses (CWE)
References
- http://nwtime.org/ntp428p9_release/Release NotesVendor Advisory
- http://support.ntp.org/bin/view/Main/NtpBug3114Issue TrackingMitigationVendor Advisory
- http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_VulnerabilitiesVendor Advisory
- http://www.securityfocus.com/bid/94447Third Party AdvisoryVDB 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
- 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-hpe
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpe
- https://usn.ubuntu.com/3707-2/
- https://www.kb.cert.org/vuls/id/633847Third Party AdvisoryUS Government Resource
- http://nwtime.org/ntp428p9_release/Release NotesVendor Advisory
- http://support.ntp.org/bin/view/Main/NtpBug3114Issue TrackingMitigationVendor Advisory
- http://support.ntp.org/bin/view/Main/SecurityNotice#Recent_VulnerabilitiesVendor Advisory
FAQ
What is CVE-2016-7427?
CVE-2016-7427 is a vulnerability with a CVSS score of 4.3 (MEDIUM). The broadcast mode replay prevention functionality in ntpd in NTP before 4.2.8p9 allows remote attackers to cause a denial of service (reject broadcast mode packets) via a crafted broadcast mode packe...
How severe is CVE-2016-7427?
CVE-2016-7427 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-7427?
Check the references section above for vendor advisories and patch information. Affected products include: Ntp Ntp.