Snowflake PHP PDO Driver is a driver that uses the PHP Data Objects (PDO) extension to connect to the Snowflake database. Snowflake discovered and remediated a vulnerability in the Snowflake PHP PDO Driver where executing unsupported queries like PUT or GET on stages causes a signed-to-unsigned conversion error that crashes the application using the Driver. This vulnerability affects versions 0.2.0 through 3.0.3. Snowflake fixed the issue in version 3.1.0.