[Wolves] Have I had a Samba DoS attack?

[Old Dan]

Hi all

On saturday at 15:52 (apparently) Samba on the server here at work 
segfaulted - apparently spontaneously.

Now what I'd like to know is - have I just had a DoS attack or is this 
worthy of being submitted to Debian?  It should be noted that everything 
else on the server /seems/ to be functioning correctly and samba 
restarted without issue, although slapd still stops uw-imapd-ssl from 
functioning for some reason.

Unfortunately dufus here left the machine sans Snort over the weekend so 
I don't have anything regarding that.  I know, I know...

Help!

-- 
Dan

The panic-action script sent:

The Samba 'panic action' script, /usr/share/samba/panic-action,
was called for pid 14278 (/usr/sbin/nmbd).

Below is a backtrace for this process generated with gdb, which shows
the state of the program at the time the error occured.  You are
encouraged to submit this information as a bug report to Debian.  For
information about the procedure for submitting bug reports , please see
http://www.debian.org/Bugs/Reporting or the reportbug(1) manpage.

(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...0x4019cb89 in wait4 () from /lib/libc.so.6
#0  0x4019cb89 in wait4 () from /lib/libc.so.6
#1  0x40210000 in sys_sigabbrev () from /lib/libc.so.6
#2  0x4013f712 in strtold_l () from /lib/libc.so.6
#3  0x4013f815 in system () from /lib/libc.so.6
#4  0x08099ccc in chroot ()
#5  0x0808ac8a in chroot ()
#6  0x0808ace5 in chroot ()
#7  0x401299d8 in sigaction () from /lib/libc.so.6
#8  0x080585d4 in chroot ()
#9  0x08058e69 in chroot ()
#10 0x0804c177 in chroot ()
#11 0x0804c9d1 in chroot ()
#12 0x40118a51 in __libc_start_main () from /lib/libc.so.6