Misuse of SHA256 to create an encryption key

Use of Password Hash With Insufficient Computational Effort vulnerability in percona percona-toolkit allows Encryption Brute Forcing.This issue affects percona-toolkit: 3.6.0.

The automatic version check functionality in the tools in Percona Toolkit 2.1 allows man-in-the-middle attackers to obtain sensitive information or execute arbitrary code by leveraging use of HTTP to download configuration information from v.percona.com.

The version checking subroutine in percona-toolkit before 2.2.13 and xtrabackup before 2.2.9 was vulnerable to silent HTTP downgrade attacks and Man In The Middle attacks in which the server response could be modified to allow the attacker to respond with modified command payload and have the client return additional running configuration information leading to an information disclosure of running configuration of MySQL.