On Thu, Sep 06, 2001 at 08:57:03PM -0700, Brian Stell wrote:
> A font worm would need to find a hole thru FreeType. Probably do
> able but I worry far more about about a direct attach via rpms.
Unlikely, I agree. There _are_ TrueType fonts that can crash Windows,
although the designers usually fix them before distributing them ;)
One approach suggested to font piracy was to include some poisoned
fonts, so that people started distrusting pirated fonts more :-)
X needs to be robust against FreeType crashing, especially when users
install fonts. Possibly the font installer should check the fonts first,
althuogh TT is powerful enough to have a bomb at certain sizes only.
Type 1 fonts are computationally safer, althuogh it's possible to make
a Type 1 font that crashes the Acrobat Distiller, I've been told.
Lee
--
Liam Quin - XML Core staff contact, W3C, http://www.w3.org/People/Quin/
Ankh: irc.sorcery.net www.valinor.sorcery.net irc.gnome.org www.advogato.org
Author, Open Source XML Database Toolkit, Wiley August 2000
Co-author: The XML Specification Guide, Wiley 1999; Mastering XML, Sybex 2001
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