f5999f0181
Several functions could overflow their size calculations, when presented with very large inputs from remote and/or untrusted locations, and then allocate buffers that were too small to hold the intended contents. Switch from int to size_t where appropriate, and check for overflow conditions when the inputs could have plausibly originated outside of the libpq trust boundary. (Overflows from within the trust boundary are still possible, but these will be fixed separately.) A version of add_size() is ported from the backend to assist with code that performs more complicated concatenation. Reported-by: Aleksey Solovev (Positive Technologies) Reviewed-by: Noah Misch <noah@leadboat.com> Reviewed-by: Álvaro Herrera <alvherre@kurilemu.de> Security: CVE-2025-12818 Backpatch-through: 13
PostgreSQL Database Management System
This directory contains the source code distribution of the PostgreSQL database management system.
PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/17/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/17/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.