CVE 2015-5300
The panic_gate check in NTP before 4.2.8p5 is only re-enabled after the first change to the system clock that was greater than 128 milliseconds by default, which allows remote attackers to set NTP to an arbitrary time when started with the -g option, or to alter the time by up to 900 seconds otherwise by responding to an unspecified number of requests from trusted sources, and leveraging a resulting denial of service (abort and restart).
Related bugs and status
CVE-2015-5300 (Candidate) is related to these bugs:
Bug #1479652: [patch] ntpd rejects source UDP ports less than 123 as bogus
Summary | In | Importance | Status | |||
---|---|---|---|---|---|---|
1479652 | [patch] ntpd rejects source UDP ports less than 123 as bogus | ntp (Ubuntu) | Medium | Fix Released | ||
1479652 | [patch] ntpd rejects source UDP ports less than 123 as bogus | NTP | High | Fix Released | ||
1479652 | [patch] ntpd rejects source UDP ports less than 123 as bogus | ntp (Debian) | Unknown | Fix Released | ||
1479652 | [patch] ntpd rejects source UDP ports less than 123 as bogus | ntp (Ubuntu Wily) | Medium | Fix Released | ||
1479652 | [patch] ntpd rejects source UDP ports less than 123 as bogus | ntp (Ubuntu Precise) | Medium | Fix Released | ||
1479652 | [patch] ntpd rejects source UDP ports less than 123 as bogus | ntp (Ubuntu Xenial) | Medium | Fix Released | ||
1479652 | [patch] ntpd rejects source UDP ports less than 123 as bogus | ntp (Ubuntu Trusty) | Medium | Fix Released |
Bug #1512980: Please enable PPS in the Ubuntu build of ntpd
Summary | In | Importance | Status | |||
---|---|---|---|---|---|---|
1512980 | Please enable PPS in the Ubuntu build of ntpd | ntp (Ubuntu) | Undecided | Fix Released |
Bug #1567540: ntpd crashed with SIGABRT (was: ntp crashes everytime the network goes up or down.)
Summary | In | Importance | Status | |||
---|---|---|---|---|---|---|
1567540 | ntpd crashed with SIGABRT (was: ntp crashes everytime the network goes up or down.) | ntp (Ubuntu) | High | Fix Released | ||
1567540 | ntpd crashed with SIGABRT (was: ntp crashes everytime the network goes up or down.) | NTP | High | Fix Released | ||
1567540 | ntpd crashed with SIGABRT (was: ntp crashes everytime the network goes up or down.) | ntp (Ubuntu Xenial) | High | Fix Released |
Bug #1582767: apparmor permissions missing for winbind
Summary | In | Importance | Status | |||
---|---|---|---|---|---|---|
1582767 | apparmor permissions missing for winbind | ntp (Ubuntu) | Medium | Fix Released | ||
1582767 | apparmor permissions missing for winbind | ntp (Ubuntu Xenial) | Undecided | Won't Fix | ||
1582767 | apparmor permissions missing for winbind | ntp (Debian) | Unknown | Fix Released |
See the
CVE page on Mitre.org
for more details.