Bugtraq mailing list archives

Re: IBM AIX Packet Filter module (followup)


From: brummie () SECURE I1 NET (Brumbles)
Date: Wed, 27 Oct 1999 18:23:34 -0500


Thank you to all respondants re the above, especially Troy from IBM who
has raised a defect, responded very quickly and has offered a temporary
patch, definatly an excellent responce. The problem seems to be
with the declaration of the port being short rather than unsigned short.
Negative values for -P do not work as a few people suggested.

Security bugs with AIX should be addressed to
security-alert () austin ibm com

This, in the experience of myself and others who replied is much faster
method of getting security related problems fixed.

Thanks again,
Brum

On Tue, 26 Oct 1999, Troy A. Bollinger wrote:

Quoting Brumbles (brummie () SECURE I1 NET):

I have tried unsuccessfully to get any response from IBM on the following,
apparently unless you have a support contract you cant report bugs..
(well.. you can.. "Program Services", but thats a link to /dev/null
apparently.)

You can always send new AIX vulnerabilities to the
security-alert () austin ibm com mail address.

AixLevel AIX4.3.2
Packet Filtering Module, in particular the command genfilt does not allow
the addition of filters with port numbers greater than 32767


I've opened defect 289790 to address this.  It appears to be caused by
using a "short" instead of an "unsigned short" for the port number.

--
Troy Bollinger                            troy () austin ibm com
AIX Security Development        security-alert () austin ibm com
PGP keyid: 1024/0xB7783129 Troy's opinions are not IBM policy



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