Flow

Summary

A flow stream should be able to be paused at any time by the stream sender, however due to insufficient validation in restarting a stream, if a stream is restarted with an rps of 0, it can never be paused again.

Vulnerability Details

pausing a stream requires that it not be paused in the first place here

This redundant check is the reason if a stream is restarted with an rps of 0, it can never be paused

Impact

sender will be unable to pause a stream once it is restarted.

Tools Used

manual review

Recommendations

Add input validation for stream restarting or remove NotPaused() modifier because pausing a stream that is already paused should not be an issue as long as it is just adjusting the rps to 0.