[UNIX] Buffer Overflow in PostgreSQL (cash_words)

From: support@securiteam.com
Date: 08/21/02 

From: support@securiteam.com
To: list@securiteam.com
Date: Wed, 21 Aug 2002 19:06:44 +0200 (CEST)

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  Buffer Overflow in PostgreSQL (cash_words)
------------------------------------------------------------------------

SUMMARY

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.

There exists a stack based buffer overflow in cash_words() function, that
potentially allows an attacker to execute malicious code.

DETAILS

How to reproduce:
psql> select cash_words('-700000000000000000000000000000');
pgReadData() -- backend closed the channel unexpectedly.
... ....

The connection to the server was lost...

Solution:
Upgrade to version 7.2.1.

ADDITIONAL INFORMATION

The information has been provided by <mailto:mordred@s-mail.com> Sir
Mordred The Traitor.

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