IN THE EXTENSION SCRIPT, a SQL Injection vulnerability was found in PostgreSQL if it uses @extowner@, @extschema@, or @extschema:...@ inside a quoting construct (dollar quoting, '', or ""). If an administrator has installed files of a vulnerable, trusted, non-bundled extension, an attacker with database-level CREATE privilege can execute arbitrary code as the bootstrap superuser.

This issue requires that the administrator has installed files of a vulnerable, trusted, non-bundled extension. Considering the tradeoff between the stability of HAQM Linux and the impact of CVE-2023-39417, a fix will not be provided for postgresql in HAQM Linux 2 core at this time. Please consider migrating to postgresql13 or postgresql14 in HAQM Linux 2 Extras instead.