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Sufficiently-deep recursion heretofore elicited a SIGSEGV. If an application constructs PostgreSQL json or jsonb values from arbitrary user input, application users could have exploited this to terminate all active database connections. That applies to 9.3, where the json parser adopted recursive descent, and later versions. Only row_to_json() and array_to_json() were at risk in 9.2, both in a non-security capacity. Back-patch to 9.2, where the json type was introduced. Oskari Saarenmaa, reviewed by Michael Paquier. Security: CVE-2015-5289 |
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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. PostgreSQL has many language interfaces, many of which are listed here: http://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.