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CVE-2015-5300

Public on 2015-10-27
Modified on 2015-10-27
Description

It was found that ntpd did not correctly implement the threshold limitation for the '-g' option, which is used to set the time without any restrictions. A man-in-the-middle attacker able to intercept NTP traffic between a connecting client and an NTP server could use this flaw to force that client to make multiple steps larger than the panic threshold, effectively changing the time to an arbitrary value at any time.

Severity
Medium
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CVSS v3 Base Score
4.3
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Affected Packages

Platform Package Release Date Advisory
Amazon Linux 1 ntp 2015-10-27 16:42 ALAS-2015-607

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv2 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N
NVD CVSSv2 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P
NVD CVSSv3 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H