Microsoft trying to fix post-Patch Tuesday OpenType rendering problem

Microsoft trying to fix post-Patch Tuesday OpenType rendering problem

Summary: The Patch Tuesday updates may have fixed a serious security flaw associated with OpenType fonts, but they also managed to make the fonts unreadable for many users of PowerPoint, Quark Xpress and Coreldraw.

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TOPICS: Security, Microsoft
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Microsoft is working on a fix for a problem with one of this month's Patch Tuesday updates, which saw certain OpenType fonts made unreadable in PowerPoint and other applications.

The update in question was designed to fix a remote code execution vulnerability that could have affected people visiting pages with embedded TrueType or OpenType fonts. It seems to have fixed that problem, but caused another.

One complaint on a Microsoft forum stated that Quark Xpress and Coreldraw on Windows 7 and XP had become unable to render OpenType characters larger than 15pt. The poster said 330 machines had the same problem, which could be fixed by uninstalling the patch — hardly an ideal solution, given the severity of the flaw.

However, Microsoft has said it is aware of the issue.

"We are aware of issues related to OpenType Font (OTF) rendering in applications such as PowerPoint on affected versions of Windows that occur after this security update is applied," it said in a note. "We are currently investigating these issues and will take appropriate action to address the known issues."

The 11 December Patch Tuesday updates also included fixes for Internet Explorer, Exchange and the Surface RT tablet.

Topics: Security, Microsoft

David Meyer

About David Meyer

David Meyer is a freelance technology journalist. He fell into journalism when he realised his musical career wouldn't pay the bills. David's main focus is on communications, as well as internet technologies, regulation and mobile devices.

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3 comments
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  • Continuing the approach of acknowledge and address

    Whereas certain competition would go very quiet before realising that actually, you were looking at it wrong...
    mountjl
  • We see the rendering problem has changed ...

    ... the intended image of a band-aid over a wound ...
    ... for an angry pirate stealing all our treasures ;-)
    jacksonjohn
  • Hmmm

    If this happened to an un-named company that has their own OS, they'd first deny the problem for the first week. In the second week say to re-install your app again - not their problem. In the third week say there is a problem - but no solution. And maybe by the fourth week, have a solution.
    Gisabun