Update severity to security.

Here's my analysis of the bugs fixed.

#  The iSNS dissector could make Ethereal abort in some cases. (0.10.3
- 0.10.4)

This is an integer overflow flaw.  It's most likely just a DOS, I see
no evidence that it could run arbitrary code, but I'm not going to
rule it out.


# SMB SID snooping could crash if there was no policy name for a
handle. (0.9.15 - 0.10.4)

This is a null pointer flaw.  It's a DOS.


# The SNMP dissector could crash due to a malformed or missing
community string. (0.8.15 - 0.10.4)

This is an out of bounds memory read issue.

This issue also affects RHEL2.1

A backported patch for Ethereal 0.10.3 can be found here:
https://bugzilla.fedora.us/show_bug.cgi?id=1840

Errata in progress

An errata has been issued which should help the problem 
described in this bug report. This report is therefore being 
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files, 
please follow the link below. You may reopen this bug report 
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2004-378.html