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PostgreSQL already checked the vast majority of these, missing this handful that nearly cannot fail. If putenv() failed with ENOMEM in pg_GSS_recvauth(), authentication would proceed with the wrong keytab file. If strftime() returned zero in cache_locale_time(), using the unspecified buffer contents could lead to information exposure or a crash. Back-patch to 9.0 (all supported versions). Other unchecked calls to these functions, especially those in frontend code, pose negligible security concern. This patch does not address them. Nonetheless, it is always better to check return values whose specification provides for indicating an error. In passing, fix an off-by-one error in strftime_win32()'s invocation of WideCharToMultiByte(). Upon retrieving a value of exactly MAX_L10N_DATA bytes, strftime_win32() would overrun the caller's buffer by one byte. MAX_L10N_DATA is chosen to exceed the length of every possible value, so the vulnerable scenario probably does not arise. Security: CVE-2015-3166 |
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README
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/.