CyberRota Analysis
AI-GeneratedThe MariaDB Connector/J versions prior to 2.7.14, 3.3.5, 3.4.3, and 3.5.9 are vulnerable due to improper handling of character set changes during a session, which can lead to silent data corruption and charset confusion between the client and server. This vulnerability primarily affects applications that rely on these connectors for database interactions, particularly those that may encounter mid-session character set changes. Organizations using affected versions should prioritize updating to the fixed versions to mitigate the risk of data integrity issues.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. Prior to 2.7.14, 3.3.5, 3.4.3, and 3.5.9, the connector encodes and decodes protocol text and performs client-side escaping under the assumption that the connection character set is UTF-8. The server can report a mid-session change to character_set_client through OK-packet session-state tracking, including a change caused by SET NAMES, a stored routine or trigger, server configuration, or a hostile server. If character_set_client changes to a non-UTF-8 value, the driver continues to read and write UTF-8 while the server interprets the same bytes under another encoding, causing silent data corruption and a client/server charset-confusion mismatch that can defeat byte-wise quoting or escaping. The fix accepts only utf8, utf8mb3, or utf8mb4 after initialization; any other value causes SQLException with SQLState 08000 and closes the connection. This issue is fixed in versions 2.7.14, 3.3.5, 3.4.3, and 3.5.9.