#Upside down text on iphone software
#Upside down text on iphone code
#Upside down text on iphone mac

How do you make your typing upside down?.

Oh, and as far as browsing is concerned, while Chromium is affected, Firefox isnвЂ™t.ДЇirefox is currently enjoying a really strong lead in our вЂњwhich browser do you trustвЂќ poll вЂ“ perhaps youвЂ™ve just found another reason to try it out.ДЇollow on Twitter for the latest computer security news. In the meantime, applications that get derailed by a CRASH: GOTO CRASH loop, like my Safari did, can probably be pointed in the right direction by digging around in the ~/Library directory, as I showed above.

If I come across one, IвЂ™ll post it here or in the comments. (IвЂ™m guessing, but Apple probably learns less about you when you submit a crash report than a search engine does when you try to look for a solution to it.)ДЄpologies that I donвЂ™t have a general workaround or mitigation for you.

#Upside down text on iphone mac

will show you what happened, much like you see below, and ask if you want to Send to Apple:ДЄpple assures you itвЂ™s anonymous, and although it reveals a little bit about you вЂ“ your timezone, what sort of Mac you have, and more вЂ“ I suspect you can send it off without too much concern. In this case, therefore, letвЂ™s hope that Apple pumps out a fix pretty jolly quickly.Д«y the way, you can help make Apple aware of the impact of the problem by reporting this crash if it happens to you.Д¬hoosing Report.

#Upside down text on iphone software

That made Safari forget that it had ever heard of my crashy website, and let me browse again.ДЄpple notoriously likes to keep completely quiet about software problems until a fix is available, as it did with the equally amusing and embarrassing but less disruptive FILE COLON SLASH SLASH SLASH bug earlier this year. No use, but I fared better when I removed: That file certainly referenced my dodgy URL, but removing it didnвЂ™t help, so I tried: I tried what I thought was the obvious solution, namely removing the file: In my testing, I ended up with SafariвЂ™s history loaded with a URL aimed at my Bad Page, provoking an HTTP reply no more threatening-looking than this:ДЄs long as my web server was running and a network connection available, relaunching Safari caused it to crash again at once. If the Apple application that tries to display the string uses the vulnerable rendering library codeвЂ¦ДЄnd if the application tries to recover gracefully when it next loads, for example by reloading the web page it was busy with beforeвЂ¦ The problem with this problem is that it can quickly become disruptive, since an offending string can be placed by an outsider into all sorts of otherwise unexceptionable places where you might stumble across it by mistake: web page titles, email subject lines, even Wi-Fi access point names.

The crash strings IвЂ™ve seen and heard of all include Arabic characters, and Arabic is, of course, written from right to left.Д«ut whether itвЂ™s the direction of the text, how the characters are combined and composited, or some other subtlety, I canвЂ™t yet tell you. The bit pattern of each byte in a character tells you how big that character is, so moving backwards and forwards in a string is easy (you donвЂ™t need to keep re-calculating from the start of the string), and 7-bit ASCII characters are represented as themselves in one byte (so simple documents in plain ASCII donвЂ™t need converting, and donвЂ™t waste space). в†’ UTF-8 is a system for representing text that uses from one to four bytes per character.

#Upside down text on iphone code

The shortest string IвЂ™ve been able to come up with that provokes this bug is just eleven bytes long, and consists of six UTF-8 characters, one of which is a plain old space (hexadecimal code 0x20). No-one has yet come up with a way to exploit these crashes for code execution, at least as far as I am aware, so theyвЂ™re vulnerabilities of the fragility sort, rather than the youвЂ™re pwned type, but theyвЂ™re still, well, jolly irritating. AppleвЂ™s iOS and OS X are currently under what can only be described as a вЂњjolly irritating attack.вЂќД¬ertain text strings, when processed by the operating systemвЂ™s CoreText rendering engine, cause the application thatвЂ™s trying to display them to crash.