I've documented it within the blog post Windows 7: Error 0x80248015 in Update Search (Dec. 4, 2017)
A simple workaround so far (until MS fixes the expire date) is to uncheck the option to update other Microsoft products - as mentioned within the blog post.
Unfortunately my control panel freezes up and won't allow me access to change any settings. It started doing that last night.
Try to set your date two days backward - maybe it helps. Otherwise try system restore to go back a few days and try the workaround again. Guss your issue is a bit more different.