I've been asked this question off-line but thought I might answer it once
here.

 

The short answer is I don't know. One of the problems with this
vulnerability is that it is very, very difficult to assess exactly what the
ramifications are. Any system is potentially vulnerable but if and only if
it performs a certain chain of actions, and computer systems are so complex
today that it is hard to tell which systems those are. That's why this
*might* be bigger than Heartbleed, and then again, it might not. You
potential vulnerabilities take two forms:

 

1.       Is your bank, your favored Web store, etc. likely to be breached
and expose your personal information or allow your assets to be compromised?
Well, Yes, it's possible. Web sites are the primary class of potentially
vulnerable systems. How can you tell if site X is vulnerable? You can't.
What can you do? The usual safe browsing precautions and keep your fingers
crossed.

2.       Is your Mac, your PC, your cellphone vulnerable directly? To the
best of my reading of the techie sites, probably not - that is a bunch of
hype and scare stories. Your Mac especially is potentially vulnerable but if
and only if (I think!) you have specifically opened it up to "telnet" access
from the Internet, and I think you would know if you have done that. Perhaps
someone like Gary who is more of a Mac expert than I can jump in here.
Windows systems are vulnerable only if you have opened them up to telnet
access and ALSO if you have installed the Cygwin or a similar Bash port -
and you probably have not, unless you know you have. (I suppose it is
possible that some software you downloaded has done so. You might consider
disabling any "remote access" type software that you have installed.)
There's a change, huh? Macs more vulnerable than Windows! I think your
cellphone is almost certainly not vulnerable, despite what the evening news
may say.

 

There. That's what I know. It's a dangerous world out there.

 

Charles 


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