Adobe released version 5.0.7 that fixes a critical vulnerability which could lead to local execuation of shell-commands. http://www.adobe.com/products/acrobat/readstep2.html
I've added 5.07 to portage masked ~x86. Please test and report any problems here. Thanks for the bug report Fridtjof.
Works fine here, no problems.
Might be a good idea to unmask 5.07 and send a GLSA, together with the one for xpdf (it's the same issue)
going to security
glsa sent