PostgreSQL 9.4.1-1

Powerful and reliable database management system that runs on multiple platforms, is compliant to SQL standards, but also packs advanced features.

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What's new in PostgreSQL 9.4.1-1:

  • Fix buffer overruns in to_char() (Bruce Momjian):
When to_char() processes a numeric formatting template calling for a large number of digits, PostgreSQL would read past the end of a buffer. When processing a crafted timestamp formatting template, PostgreSQL would write past the end of a buffer. Either case could crash the server. We have not ruled out the possibility of attacks that lead to privilege escalation, though they seem unlikely. (CVE-2015-0241)

  • Fix buffer overrun in replacement *printf() functions (Tom Lane):

  • PostgreSQL includes a replacement implementation of printf and related functions. This code will overrun a stack buffer when formatting a floating point number (conversion specifiers e, E, f, F, g or G) with requested precision greater than about 500. This will crash the server, and we have not ruled out the possibility of attacks that lead to privilege escalation. A database user can trigger such a buffer overrun through the to_char() SQL function. While that is the only affected core PostgreSQL functionality, extension modules that use printf-family functions may be at risk as well.
This issue primarily affects PostgreSQL on Windows. PostgreSQL uses the system implementation of these functions where adequate, which it is on other modern platforms. (CVE-2015-0242)

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PostgreSQL is a database system that can run on most major operating systems, such as Mac OS X, Linux, Windows, and so on. In addition, PostgreSQL comes with native interfaces for various well known programming languages: Java, C/C++, ODBC, Tcl, Python, Ruby, Perl, and so on.

Noteworthy is that PostgreSQL integrates SQL:2008 data types (NUMERIC, INTEGER, CHAR, BOOLEAN, TIMESTAMP, VARCHAR, DATE, or INTERVAL), and is completely ACID compliant (your database transactions are handled in a reliable manner).

Powerful database server that comes with a user friendly installer

To simplify the server deployment process, the PostgreSQL software package is delivered with an installer featuring a Setup Wizard: you get to specify the installation directory, the data directory, the password for the superuser account, the port the server should listen on, and the language to be used by the new database cluster.

Moreover, PostgreSQL makes use of shared memory which might be limited by the default Mac OS X configuration. As a result, you might need to edit the sysctl.conf file before installation, in order to make sure PostgreSQL will be able to use more shared memory.

Customizable database server that packs both standard functions libraries and advanced capabilities

PostgreSQL provides support for basic database parameters and management tools: the SQL implementation matches the ANSI-SQL:2008 standards. However, the server also includes more advanced functionalities, and you can extend the capabilities via extensions.

Notable is the GiST (Generalized Search Tree) system that combines multiple sorting and searching functions, while allowing you to create custom data types. Furthermore, PostgreSQL provides access to a rules system, to an events database, and can deal with table inheritance.

To conclude, PostgreSQL proposes a database management system that proves to be both reliable and packed with a wide array of basic and advanced features. To help you get started, the developers also provide an extensive documentation.

PostgreSQL was reviewed by , last updated on February 17th, 2015

Runs on: Mac OS X 10.4 or later (Universal Binary)

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#database server #PostgreSQL server #database manager #PostgreSQL #database #data base #data-base

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