This update for varnish fixes the following issues:

- CVE-2019-20637: Fixed an information leak when handling one client request and the next on the same connection (boo#1169040)
- CVE-2020-11653: Fixed a performance loss due to an assertion failure and daemon restart when communicating with TLS termination proxy that uses PROXY version 2 (boo#1169039)

This update was imported from the openSUSE:Leap:15.1:Update update project.