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attacks where an attacker would put <attack>\0<propername> in the field and trick the validation code that the certificate was for <attack>. This is a very low risk attack since it reuqires the attacker to trick the CA into issuing a certificate with an incorrect field, and the common PostgreSQL deployments are with private CAs, and not external ones. Also, default mode in 8.4 does not do any name validation, and is thus also not vulnerable - but the higher security modes are. Backpatch all the way. Even though versions 8.3.x and before didn't have certificate name validation support, they still exposed this field for the user to perform the validation in the application code, and there is no way to detect this problem through that API. Security: CVE-2009-4034 |
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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. Changes between all PostgreSQL releases are recorded in the file HISTORY. 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/.