Vulnwatch: (Correction) Netscreen SSH1 CRC32 Compensation Denial of service

From: Erik Parker <erik.parker_at_digitaldefense.net>
Date: Fri, 1 Nov 2002 12:58:45 -0600 (CST)

There is a major correction to this data. Netscreen contacted me a couple
of minutes after posting this. When they confirmed it was vulnerable to
CRC32, it appears they were actually confirming there was a 'problem', and
not the actual CRC32 bug.

This DoS is unrelated to the CRC32 bug, however the CRC32 exploit is
capable of causing the DoS.

As a temporary solution until Netscreen can release a new ScreenOS, you
could disable SSH if this is a viable option for you.

So, it would appear Netscreen did NOT miss the CRC32 bugs that came out,
and it's just a new one.

It would appear Netscreen's lack of response was due to improper handling
of the notifications and E-mails, combined with them moving offices over
the past couple of weeks. product-sec-alert_at_netscreen.com seems to get you
to the right place, at the right time.
Received on Nov 01 2002