uutils coreutils has a Time-of-check Time-of-use (TOCTOU) Race Condition

The mkdir utility in uutils coreutils incorrectly applies permissions when using the -m flag by creating a directory with umask-derived permissions typically 0755 before subsequently changing them to the requested mode via a separate chmod system call. In multi-user environments, this introduces ...

CVE-2019-16779

In RubyGem excon before 0.71.0, there was a race condition around persistent connections, where a connection which is interrupted such as by a timeout would leave data on the socket. Subsequent requests would then read this data, returning content from the previous response. The race condition...