Microsoft explains missing Mac Office patches
Defends move, but won't say when it will fix Office for Mac 2004, 2008
Computerworld - Microsoft today explained why it has not patched older versions of its Office for Mac, but would not disclose a release schedule for doing so.
"We cannot give an exact date, but we expect to provide these updates during one of our normal monthly update cycles very soon," said Jerry Bryant, a group manager in the Microsoft Security Response Center (MSRC).
Bryant was responding to questions raised Tuesday when Microsoft issued a multi-patch update for all versions of Office on Windows, including Office XP, 2003, 2007 and 2010, and Office for Mac 2011.
However, Microsoft did not deliver patches for the vulnerabilities in Office for Mac 2004 and Office for Mac 2008.
"The updates for Mac Office 2004 and 2008 were not ready for broad distribution at the same time as the updates for the affected products used by the vast majority of our customers," said Bryant in an e-mail reply to Computerworld queries.
The majority of Office users run the Windows editions of the suite, which greatly outsells the same software for Mac OS X.
According to the MS10-087 security bulletin associated with the Office updates, Office 2007 and Office 2010 users are most at risk because attackers can hijack their machines simply by getting them to view a specially-crafted message in the Outlook preview pane.
In a second e-mail Wednesday, Bryant said that Office for Mac users were not vulnerable to the same types of attacks, although hackers could try to dupe them into opening malicious RTF (rich text format) documents attached to e-mail messages.
Microsoft has delayed security updates for the Mac version of Office before.
In May 2009, Microsoft shipped patches for the Windows version of PowerPoint -- Office's presentation maker -- but delayed fixes for the same flaws in its Mac software until the following month.
At the time, Microsoft's security team defended the decision by saying that fixes for Windows were finished, but were still being tested on the Mac.
Today, Bryant said it was a matter of priorities, both in the number of users running Windows software compared to the Mac, and in the threat posed to each group. "Normally, we release updates for all affected products at the same time, [but] in cases where the vast majority of our customers are at potential risk and we can provide protections, we may decide to release updates for those products, if ready, ahead of products where the risk is very low," he said.
Last year, Microsoft took heat over the PowerPoint patch delay, with one security expert saying it put Mac users at risk. Others agreed with Microsoft's decision at the time.
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