IBM DB2 Flaws Found

By Lisa Vaas  |  Posted 2005-02-11 Print this article Print

Several flaws have been discovered in IBM's DB2 Universal Database that can be exploited to cause DoS attacks, to reveal sensitive information, to read and manipulate file content, or to compromise vulnerable systems.

Several flaws have been discovered in IBMs DB2 Universal Database that can be exploited to cause DoS attacks, to reveal sensitive information, to read and manipulate file content, or to compromise vulnerable systems. An advisory posted Thursday on the bug-reporting site Secunia rates the flaws as moderately critical, with IBM having already issued a FixPak for DB2 versions 8.x. IBMs advisory states that the vulnerabilities were discovered on Dec. 10. The new vulnerabilities follow close on the heels of three FixPaks that IBM released in October to address multiple vulnerabilities in DB2 on Linux, Unix and Windows platforms.
The specifics on one of the flaws is that an error in the Windows platform relating to the way system resources are used can be exploited to cause a denial-of-service attack, to grab users passwords or to view other query results.
A second flaw has to do with processing of network messages while establishing a database connection or instance attachment. Attackers can exploit the flaw to execute arbitrary code. For insights on security coverage around the Web, check out Security Center Editor Larry Seltzers Weblog. Another flaw deals with missing restrictions in some XML Extender user-defined functions. Exploits result in malicious users being able to read or manipulate file content. Finally, when creating certain databases within federated support, attackers can exploit a flaw that allows them to execute arbitrary code on vulnerable systems. IBM advises all users of Unix, Linux and Windows platforms, as well as users of DB2 UDB clients, servers and Connect gateway installations, to install FixPaks 6a, 6b and 7a. IBM advises all of the above users, plus users of DB2 XML Extender, to install FixPak 8. Windows-specific fixes in FixPak 8 also apply to DB2 clients, but the risk isnt serious, according to IBM, and therefore the fix isnt crucial. In general, IBM advises DB2 UDB administrators to upgrade all DB2 client, server and Connect gateway instances on all supported platforms to DB2 UDB Version 8.1 FixPak 8 "as soon as possible." The only exceptions are DB2 UDB client instances on Version 8.1 FixPak 6a, 6b or 7a, which dont need to move up to the FixPak 8 level. Check out eWEEK.coms for the latest database news, reviews and analysis.
Lisa Vaas is News Editor/Operations for and also serves as editor of the Database topic center. Since 1995, she has also been a Webcast news show anchorperson and a reporter covering the IT industry. She has focused on customer relationship management technology, IT salaries and careers, effects of the H1-B visa on the technology workforce, wireless technology, security, and, most recently, databases and the technologies that touch upon them. Her articles have appeared in eWEEK's print edition, on, and in the startup IT magazine PC Connection. Prior to becoming a journalist, Vaas experienced an array of eye-opening careers, including driving a cab in Boston, photographing cranky babies in shopping malls, selling cameras, typography and computer training. She stopped a hair short of finishing an M.A. in English at the University of Massachusetts in Boston. She earned a B.S. in Communications from Emerson College. She runs two open-mic reading series in Boston and currently keeps bees in her home in Mashpee, Mass.

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