Thanks for your bugreport.
This looks like something is wrong with your install of the package virtualbox.
Please run:
$ sudo dpkg --remove --force-remove-reinstreq. virtualbox
to get rid of it.
** Changed in: update-manager (Ubuntu)
Status: New => Incomplete
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update-manager
https://bugs.launchpad.net/bugs/140457
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ubuntu-bugs mailing list
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