Fedora 25: ntp Security Update
Summary
The Network Time Protocol (NTP) is used to synchronize a computer's
time with another reference time source. This package includes ntpd
(a daemon which continuously adjusts system time) and utilities used
to query and configure the ntpd daemon.
Perl scripts ntp-wait and ntptrace are in the ntp-perl package,
ntpdate is in the ntpdate package and sntp is in the sntp package.
The documentation is in the ntp-doc package.
Update Information:
Security fix for CVE-2017-6464 CVE-2017-6462 CVE-2017-6463 CVE-2017-6458 CVE-2017-6451.
Change Log
References
[ 1 ] Bug #1434011 - CVE-2017-6451 ntp: Improper use of snprintf() in mx4200_send() https://bugzilla.redhat.com/show_bug.cgi?id=1434011 [ 2 ] Bug #1434005 - CVE-2017-6458 ntp: Potential Overflows in ctl_put() functions https://bugzilla.redhat.com/show_bug.cgi?id=1434005 [ 3 ] Bug #1434002 - CVE-2017-6463 ntp: Authenticated DoS via Malicious Config Option https://bugzilla.redhat.com/show_bug.cgi?id=1434002 [ 4 ] Bug #1433995 - CVE-2017-6462 ntp: Buffer Overflow in DPTS Clock https://bugzilla.redhat.com/show_bug.cgi?id=1433995 [ 5 ] Bug #1433987 - CVE-2017-6464 ntp: Denial of Service via Malformed Config https://bugzilla.redhat.com/show_bug.cgi?id=1433987
Update Instructions
This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade ntp' at the command line. For more information, refer to the dnf documentation available at https://dnf.readthedocs.io/en/latest/command_ref.html