USN-2567-1: NTP vulnerabilities
13 April 2015
Several security issues were fixed in NTP.
- ntp - Network Time Protocol daemon and utility programs
Miroslav Lichvar discovered that NTP incorrectly validated MAC fields. A
remote attacker could possibly use this issue to bypass authentication and
spoof packets. (CVE-2015-1798)
Miroslav Lichvar discovered that NTP incorrectly handled certain invalid
packets. A remote attacker could possibly use this issue to cause a denial
of service. (CVE-2015-1799)
Juergen Perlinger discovered that NTP incorrectly generated MD5 keys on
big-endian platforms. This issue could either cause ntp-keygen to hang, or
could result in non-random keys. (CVE number pending)
The problem can be corrected by updating your system to the following package versions:
In general, a standard system update will make all the necessary changes.