mailing list archives
Re: ntpd segfaults accessing IPv6 hosts
From: mayer () gis net
Date: Mon, 01 Nov 2004 10:30:26 -0500
----- Original Message Follows -----
ntpd 1:4.2.0a-11 (as in debian testing/sarge and unstable/sid)
segfaults when accessing ntp servers on IPv6 hosts. I don't know
whether this bug is exploitable. But such a server on
pool.ntp.org might DoS many servers.
There are no IPv6 addresses in pool.ntp.org so there is no risk here.
(dig AAAA pool.ntp.org)
There is a fixed version available.
The latest ntp-dev tarball should have the fixes. Currently the
number of ntp servers with IPv6 AAAA records is very low.
For more details see http://bugzilla.ntp.org/show_bug.cgi?id=353
Full-Disclosure - We believe in it.