08e812c02a
This commit addresses two defects in this SQL function, the code assuming that: - The user-supplied string was long enough to contain a character of the length implied by the first byte. It is possible to provide in input data that was able to disclose a few bytes of server memory, allowing out-of-bound reads. - Specific bytes had values within the expected range, using a set of assertions to validate them. The assertions could be triggered on invalid input. These are replaced by tests and error reports. Reported-by: Hcamael <baiyjrh@gmail.com> Author: Michael Paquier <michael@paquier.xyz> Reviewed-by: Robert Haas <robertmhaas@gmail.com> Backpatch-through: 14 Security: CVE-2026-18024
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/18/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/18/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/.