Actually there is just one way :
Set the availability date for buggy version to far future, then submit new version and ask for a expedited review.
After these you should have new version reviewed under 48 hours, depending on weekday.
Open the app in iTunes Connect and click “Rights and Pricing” top right. You get a message like this: “You have selected an Available Date in the future. This will remove your currently live version from the App Store until the new date. Changing Available Date affects all versions of the application, both Ready For Sale and In Review.”
Also you can request a faster review for your next update:
https://developer.apple.com/appstore/contact/?topic=expedite