CVE-2016-7431

Impact:
Moderate
Public Date:
2016-11-21
IAVA:
2017-A-0003
CWE:
CWE-20
Bugzilla:
1397331: CVE-2016-7431 ntp: Zero Origin timestamp regression

The MITRE CVE dictionary describes this issue as:

NTP before 4.2.8p9 allows remote attackers to bypass the origin timestamp protection mechanism via an origin timestamp of zero. NOTE: this vulnerability exists because of a CVE-2015-8138 regression.

Find out more about CVE-2016-7431 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

This issue did not affect the versions of ntp as shipped with Red Hat Enterprise Linux 5, 6 and 7.

CVSS v2 metrics

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

Base Score 5
Base Metrics AV:N/AC:L/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None

CVSS v3 metrics

NOTE: The following CVSS v3 metrics and score provided are preliminary and subject to review.

CVSS3 Base Score 5.3
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Impact Low
Availability Impact None

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 Not affected
Red Hat Enterprise Linux 6 ntp Not affected
Red Hat Enterprise Linux 5 ntp Not affected
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

Last Modified

CVE description copyright © 2017, The MITRE Corporation