Adobe released a new flash version (27 v183) that seems to work.
I haven't tested this with Ubuntu but it works with Chrome on my WIndows 10 system here.
There I browsed to chrome://components/ and updated flash.
Not useful in that you didn't like the KB or you tried the version of Shockwave Flash that was suggested and it did not resolve the issue?
You could try the workaround posted by William Lam here:
Please look into this community thread. I have installed flash player to resolve the issue :
Did some tests.
Win10 1709, Chrome 62, Flash 126.96.36.199 - works
MacOS High Sierra, Chrome 62, Flash 188.8.131.52 - works
Ubuntu 17.04, Chrome 62, Flash 184.108.40.206 - Shockwave crashed
vCenter certificates are trusted.
Installing new beta version released by adobe post this issue, fixed this for me.