[Printing-architecture] Fwd: raw socket Linux kernel panic

Ira McDonald blueroofmusic at gmail.com
Wed Jun 19 14:56:05 UTC 2019


Of course, we don't encourage people to use Port 9100 (for example)
for printing, but this raw socket kernel panic looks like a serious issue.

- Ira

---------- Forwarded message ---------
From: Dave New <dave.new at fcagroup.com>
Date: Wed, Jun 19, 2019 at 10:46 AM
Subject: raw socket Linux kernel panic
To: Ira McDonald <blueroofmusic at gmail.com>


Heard on the security now podcast this morning, there is a raw socket Linux
kernel panic that goes back about ten years.  I noticed that you are
involved with the printing stuff, and I recall that includes raw sockets,
which might be likely exposed to the Internet (purposefully or

What I understand is that the issue is in the kernel TCP stack, so there
may be little that can be done from the printer driver level, except maybe
close off the raw socket access until the kernels can be patched.

Steve Gibson expects that by next week, an attack in the wild against
unpatched kernels will be featured front-and-center for his podcast.


--  DaveN

Dave New

Advanced Senior Engineer

E/E Wireless & Security


CIMS 484-10-01

800 Chrysler Dr, Auburn Hills, MI USA 48326-2757


Telephone: +1 (248) 576 1591

Mobile: +1 (248) 705 8701

FAX: +1 (248) 576 8398

Email: dave.new at fcagroup.com
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