If a bug is raised during a test execution with an associated requirement version, that bug can be traced to the requirement version. In the requirement's Traceability tab, navigate to the Bugs Raised secondary tab to see the list of bugs raised against test cases for the requirement version. Make sure the correct version is chosen in the dropdown.
Users will need project permissions to view the requirement. Depending on the settings of the user's project permissions, they may be able to view all the project requirements or just a subset of them. Users added to a specific requirement as a contributor or reviewer will be able to view it.