On Fri, Aug 02, 2019 at 06:49:08AM +0200, Willy Tarreau wrote:

Hi Greg, Thomas,

On Thu, Jul 25, 2019 at 03:01:13PM +0200, Greg Kroah-Hartman wrote:

quoted

+The list is encrypted and email to the list can be sent by either PGP or
+S/MIME encrypted and must be signed with the reporter's PGP key or S/MIME
+certificate. The list's PGP key and S/MIME certificate are available from
+https://www.kernel.org/....

Just thinking, wouldn't it be useful to strongly encourage that the
document should be in plain text format ? Otherwise the door remains open
for sending you a self-extractable EXE file which contains an encrypted
Word doc, which is not the most useful to handle especially to copy-paste
mitigation code nor to comment on. Even some occasional PDFs we've seen
on the sec@k.o list were sometimes quite detailed but less convenient
than the vast majority of plain text ones, particularly when it comes
to quoting some parts.

What document are you referring to here?  This just describes how the
encrypted mailing list is going to work, not anything else.

But yes, we have had some "encrypted pdfs" be sent to us recently that
no one can decrypt unless they run Windows or do some really crazy hacks
with the gstreamer pipeline.  But that's separate from this specific
mailing list, we can always just tell people to not do foolish things if
that happens again (like we did in this case.)

thanks,

greg k-h