CVE-2016-1549: Medium severity ntp vulnerability
A malicious authenticated peer can create arbitrarily-many ephemeral associations in order to win the clock selection algorithm in ntpd in NTP 4.2.8p4 and earlier and NTPsec 3e160db8dc248a0bcb053b56a80167dc742d2b74 and a5fb34b9cc89b92a8fef2f459004865c93bb7f92 and modify a victim's clock.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2016-1549?
CVE-2016-1549 is considered a high severity vulnerability due to its potential to compromise time synchronization.
How do I fix CVE-2016-1549?
To fix CVE-2016-1549, upgrade NTP to version 4.2.8p5 or later, as well as ensure that you are using the latest version of NTPsec.
What impact does CVE-2016-1549 have on affected systems?
CVE-2016-1549 allows a malicious authenticated peer to manipulate the clock selection process, potentially leading to unauthorized time changes.
Which versions of NTP are affected by CVE-2016-1549?
CVE-2016-1549 affects NTP version 4.2.8p4 and all earlier versions.
Can CVE-2016-1549 be exploited remotely?
CVE-2016-1549 requires malicious users to have authenticated access to the NTP server to exploit the vulnerability.