CVE-2022-31626

A buffer overflow vulnerability was found in PHP when processing passwords in mysqlnd/pdo in mysqlnd_wireprotocol.c. When using the pdo_mysql extension with mysqlnd driver, if the third party is allowed to supply a MySQL database server password in the mysqlnd driver to the host for the connection, a password of excessive length can trigger a buffer overflow in PHP. This flaw allows a remote attacker to pass a password (with an excessive length) via PDO to the MySQL server, triggering arbitrary code execution on the target system.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.