Crash on Mac using fuzzed font in data: URL Announced September 7, 2010 Reporter Marc Schoenefeld Impact Critical Products Firefox, SeaMonkey, Thunderbird Fixed in. Firefox 3.5.12. Firefox 3.6.9. SeaMonkey 2.0.7. Thunderbird 3.0.7. Thunderbird 3.1.3 Description Security researcher Marc Schoenefeld reported that a specially crafted font could be applied to a document and cause a crash on Mac systems. The crash showed signs of memory corruption and presumably could be used by an attacker to execute arbitrary code on a victim's computer.
![Font Font](https://prod-cdn.sumo.mozilla.net/uploads/images/2018-03-01-06-52-03-a091df.png)
References.
In this video I show you how to fix an issue that makes the font on your browsers different than intended when a font is replaced by another. How to fix the browser font (MAC) LikeABossCorp. OpenType is the most used font format on web and across different platforms (Windows & Mac). All the major players including Apple, Microsoft, Google, Adobe and Mozilla developed different solutions to extend the OpenType font format to include color glyph information.