Fedora 20: ntp Security Update

    Date22 Apr 2015
    Posted ByLinuxSecurity Advisories
    Security fix for CVE-2015-1799, CVE-2015-1798, #1210324
    Fedora Update Notification
    2015-04-09 05:00:34
    Name        : ntp
    Product     : Fedora 20
    Version     : 4.2.6p5
    Release     : 22.fc20
    URL         : http://www.ntp.org
    Summary     : The NTP daemon and utilities
    Description :
    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-2015-1799, CVE-2015-1798, #1210324
    * Tue Apr 14 2015 Miroslav Lichvar  4.2.6p5-22
    - fix generation of MD5 keys with ntp-keygen on big-endian systems (#1210324)
    * Wed Apr  8 2015 Miroslav Lichvar  4.2.6p5-21
    - reject packets without MAC when authentication is enabled (CVE-2015-1798)
    - protect symmetric associations with symmetric key against DoS attack
    * Thu Feb  5 2015 Miroslav Lichvar  4.2.6p5-20
    - validate lengths of values in extension fields (CVE-2014-9297)
    - drop packets with spoofed source address ::1 (CVE-2014-9298)
    * Fri Dec 19 2014 Miroslav Lichvar  4.2.6p5-19
    - don't generate weak control key for resolver (CVE-2014-9293)
    - don't generate weak MD5 keys in ntp-keygen (CVE-2014-9294)
    - fix buffer overflows via specially-crafted packets (CVE-2014-9295)
    - don't mobilize passive association when authentication fails (CVE-2014-9296)
    * Mon Dec  9 2013 Miroslav Lichvar  4.2.6p5-18
    - fix calculation of root dispersion (#1037981)
    - refresh peers on routing updates (#1028176)
    - drop patch allowing -p and -u options to be used twice (#639101)
    - remove unnecessary IPv6 restrict line from default ntp.conf
    - replace hardening build flags with _hardened_build
      [ 1 ] Bug #1199435 - CVE-2015-1799 ntp: authentication doesn't protect symmetric associations against DoS attacks
      [ 2 ] Bug #1199430 - CVE-2015-1798 ntp: ntpd accepts unauthenticated packets with symmetric key crypto
      [ 3 ] Bug #1210324 - ntp: ntp-keygen may generate non-random symmetric keys on big-endian systems
    This update can be installed with the "yum" update program.  Use
    su -c 'yum update ntp' at the command line.
    For more information, refer to "Managing Software with yum",
    available at http://docs.fedoraproject.org/yum/.
    All packages are signed with the Fedora Project GPG key.  More details on the
    GPG keys used by the Fedora Project can be found at
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