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Tom Lane 01824385ae Prevent potential overruns of fixed-size buffers.
Coverity identified a number of places in which it couldn't prove that a
string being copied into a fixed-size buffer would fit.  We believe that
most, perhaps all of these are in fact safe, or are copying data that is
coming from a trusted source so that any overrun is not really a security
issue.  Nonetheless it seems prudent to forestall any risk by using
strlcpy() and similar functions.

Fixes by Peter Eisentraut and Jozef Mlich based on Coverity reports.

In addition, fix a potential null-pointer-dereference crash in
contrib/chkpass.  The crypt(3) function is defined to return NULL on
failure, but chkpass.c didn't check for that before using the result.
The main practical case in which this could be an issue is if libc is
configured to refuse to execute unapproved hashing algorithms (e.g.,
"FIPS mode").  This ideally should've been a separate commit, but
since it touches code adjacent to one of the buffer overrun changes,
I included it in this commit to avoid last-minute merge issues.
This issue was reported by Honza Horak.

Security: CVE-2014-0065 for buffer overruns, CVE-2014-0066 for crypt()
2014-02-17 11:20:21 -05:00
config Allow use of "z" flag in our printf calls, and use it where appropriate. 2014-01-23 17:18:33 -05:00
contrib Prevent potential overruns of fixed-size buffers. 2014-02-17 11:20:21 -05:00
doc Document security implications of check_function_bodies. 2014-02-17 09:33:31 -05:00
src Prevent potential overruns of fixed-size buffers. 2014-02-17 11:20:21 -05:00
.dir-locals.el Update Emacs configuration 2013-08-13 20:08:44 -04:00
.gitattributes gitattributes: Make syntax compatible with older Git versions 2013-11-12 21:58:46 -05:00
.gitignore Add *.pot to .gitignore 2013-10-19 10:56:52 -04:00
COPYRIGHT Update copyright for 2014 2014-01-07 16:05:30 -05:00
GNUmakefile.in Don't generate plain-text HISTORY and src/test/regress/README anymore. 2014-02-10 20:48:04 -05:00
HISTORY Improve text of stub HISTORY file. 2014-02-12 18:16:17 -05:00
Makefile Allow make check in PL directories 2011-02-15 06:52:12 +02:00
README Don't generate plain-text HISTORY and src/test/regress/README anymore. 2014-02-10 20:48:04 -05:00
README.git Don't generate plain-text HISTORY and src/test/regress/README anymore. 2014-02-10 20:48:04 -05:00
aclocal.m4 Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
configure Allow use of "z" flag in our printf calls, and use it where appropriate. 2014-01-23 17:18:33 -05:00
configure.in Allow use of "z" flag in our printf calls, and use it where appropriate. 2014-01-23 17:18:33 -05:00

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/.