CVE-2016-1547

Impact:
Moderate
Public Date:
2016-04-26
Bugzilla:
1331461: CVE-2016-1547 ntp: crypto-NAK preemptable association denial of service
A denial of service flaw was found in the way NTP handled preemptable client associations. A remote attacker could send several crypto NAK packets to a victim client, each with a spoofed source address of an existing associated peer, preventing that client from synchronizing its time.

Find out more about CVE-2016-1547 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

Red Hat Enterprise Linux 5:
This vulnerability has been rated as having a security impact of Moderate. After evaluation and in accordance with the criteria noted in the product support life cycle, there are no plans to address this issue in an upcoming release. Please contact Red Hat Support for further information.

CVSS v2 metrics

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).

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux 6 (ntp) RHSA-2016:1141 2016-05-31
Red Hat Enterprise Linux Extended Update Support 6.7 (ntp) RHSA-2016:1552 2016-08-03
Red Hat Enterprise Linux 7 (ntp) RHSA-2016:1141 2016-05-31

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 5 ntp Will not fix
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.

External References

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