03-08-2013, 04:13 AM
Unfortunately there isn't really any way to cover this up completely short of new veneer. My suggestion, provided that the cabinet hasn't fallen over and broken the structural wood underneath, would be to try injecting some glue under where the veneer is lifting, and then holding it down with masking tape. After the glue dries you can sand it smooth, but save the dust in case you need to fill any voids.
Regards
Arran
Regards
Arran