GHSA-v42g-7q2x-cw32 Zendframework1 potential SQL injection vector using null byte for PDO (MsSql, SQLite)

• Packagist zendframework/zendframework1: >= 1.12.0, < 1.12.16 → fixed in 1.12.16

The PDO adapters of Zend Framework 1 do not filter null bytes values in SQL statements. A PDO adapter can treat null bytes in a query as a string terminator, allowing an attacker to add arbitrary SQL following a null byte, and thus create a SQL injection. We tested and verified the null byte injection using pdo_dblib (FreeTDS) on a Linux environment to access a remote Microsoft SQL Server, and also tested against and noted the vector against pdo_sqlite.