A1Ex

**Name of the Vulnerable Software and Affected Versions** PostgreSQL versions prior to 18.4 PostgreSQL versions prior to 17.10 PostgreSQL versions prior to 16.14 PostgreSQL versions prior to 15.18 PostgreSQL versions prior to 14.23 **Description** Integer wraparound in multiple server features allows an unprivileged database user to cause the server to undersize an allocation and write out-of-bounds. This can lead to arbitrary code execution as the operating system user running the database. In applications that pass gigabyte-scale user inputs to the relevant database functions, the input provider may cause a segmentation fault, which is an error occurring when a program attempts to access a memory location that it is not allowed to access. **Recommendations** Update to version 18.4 or later. Update to version 17.10 or later. Update to version 16.14 or later. Update to version 15.18 or later. Update to version 14.23 or later.