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Critical Windows & Office fixes next week

Microsoft to patch seven security holes

Microsoft will issue seven security updates next week for Windows, Office, Exchange and BizTalk.

Two of the seven bulletins slated for the 8 May release involve Windows, three affect Microsoft Office, and one each impact Microsoft Exchange and the cryptography API within BizTalk Server. At least five of the seven updates are ‘critical’, Microsoft's highest threat score in its four-level system.

Several non-security updates classified as ‘high priority’ will also be unveiled via Windows Update, Microsoft Update and Windows Server Update Services (WSUS).

As usual, Microsoft did not disclose details of the updates, but intelligent guesses are not difficult. One of the Windows updates, for example, will likely be a fix for the DNS (Domain Name System) zero-day bug found in all editions of Microsoft's server line, including the current beta of Windows Longhorn Server. While researchers predicted last month that Microsoft would issue an out-of-cycle fix for the DNS server service flaw, the company's security team instead has repeatedly blogged that it would probably wait until the regularly scheduled patch day.

In the meantime, botnet worms have been on the prowl for more than two weeks.

Other good bets include a fix for a Word 2000/2002 flaw that Microsoft acknowledged on 14 February. The vulnerability, which the SANS Institute's Internet Storm Center calls critical and Danish bug tracker Secunia pegs as extremely critical, has been exploited by attackers for more than three months. The Word patch didn't make it into last month's updates.

Microsoft also said it would deploy a patch for the cryptography API (dubbed CAPICOM) within BizTalk Server; that process management server has rarely needed to be fixed. Microsoft's security update database only includes two BizTalk references, the most recent of which was issued four years ago.

If Microsoft issues the seven updates, users will have seen 29 bulletins in the first four months of the year, and at least 49 patches; more than half of those will have been marked critical. During the first five months of 2006, Microsoft issued 20 updates with 36 patches.

Tuesday's updates are expected to be available for manual download from the Microsoft website.

www.computerworld.com


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