CVE-2016-2516

Impact:
Moderate
Public Date:
2016-04-26
Bugzilla:
1331466: CVE-2016-2516 ntp: assertion failure in ntpd on duplicate IPs on unconfig directives

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2016-2516 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 4.3
Base Metrics AV:N/AC:M/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 ntp Will not fix
Red Hat Enterprise Linux 6 ntp Will not fix
Red Hat Enterprise Linux 5 ntp Not affected

Mitigation

Disable remote configuration of NTP, or restrict this ability to trusted users.

External References

Last Modified

CVE description copyright © 2017, The MITRE Corporation