Provide references for CVE-2021-21501.
Where can I find more information about CVE-2021-21501?
References are available at: https://lists.apache.org/thread.html/r337be65e504eac52a12e89d7de40345e5d335deee9dd7288f7f59b81%40%3Cdev.servicecomb.apache.org%3E, https://lists.apache.org/thread.html/r337be65e504eac52a12e89d7de40345e5d335deee9dd7288f7f59b81%40%3Cannounce.apache.org%3E, http://www.openwall.com/lists/oss-security/2021/08/10/3.