On Sunday, well-known iOS developer Flippo Bigarella released a new free jailbreak tweak in Cydia called GlyphPatch, which has managed to perk some eyebrows. The tweak fixes a vulnerability in iOS having to do with character rendering engines that can be the root cause of a DoS (Denial of Service) attack, as the developer explains:
Originally Posted by Filippo
The vulnerability can be effective against users through all kinds of application interfaces, including the Messages application, Safari application, Settings application, and more. Virtually anywhere in iOS where characters can be rendered, the user can be affected.
This vulnerability is also available in Mac OS X; Bigarella explains that he is working on a fix for Mac OS X users too, but it is not yet available at this point in time. GlyphPatch is an open source jailbreak tweak, and its source code is available on Github at this link. Bigarella goes into more detail about how the vulnerability works on his blog at this link.
After installing GlyphPatch, you will be protected from this vulnerability without having to take any further steps. If you want to grab it, refresh your sources and take a look in the Changes tab of Cydia.
Developer: Filippo Bigarella