Two Unicode Symbols Found to Crash Mac and iOS Apps

DooKey

[H]F Junkie
Joined
Apr 25, 2001
Messages
10,431
Two unicodes have been found that will crash almost any app running on a Mac or iOS device. The symbol just has to be displayed and then the software crashes. In some cases the app can't reopen and must be reinstalled. This is pretty nasty and Apple needs to get this one patched quickly.

The bug crashes apps including Mail, Twitter, Messages, Slack, Instagram and Facebook. From our testing, it also crashed Jumpcut, a copy and paste plugin for Mac. While it initially appeared that the Chrome browser for Mac was unaffected and could safely display the symbol, it later crashed Chrome and the software would not reopen without crashing until uninstalled and reinstalled.
 

steakman1971

2[H]4U
Joined
Nov 22, 2005
Messages
2,433
Hello Apple QA. Here is a simple test: create a test script that sends every Unicode character to the iMessage app. If it causes a crash, make note of the unicode character and create an issue for development to fix.
This isn't the first time they've had a bug like this. This is bad!
 

Master_shake_

Fully [H]
Joined
Apr 9, 2012
Messages
17,795
Hello Apple QA. Here is a simple test: create a test script that sends every Unicode character to the iMessage app. If it causes a crash, make note of the unicode character and create an issue for development to fix.
This isn't the first time they've had a bug like this. This is bad!

you misspelled courageous.

i think you meant "this is courageous"
 

azuza001

Gawd
Joined
Apr 4, 2012
Messages
697
That's just stupid silly. Wow. How could that affect multiple apps? It's not like chrome is developed using apples software. Must be a key problem with the os. Only thing that makes sense to me. :(
 

Exavior

[H]F Junkie
Joined
Dec 13, 2005
Messages
9,700
That is really a dick move to post something that you know very well will cause issues with the intent of break people's systems.
 
D

Deleted member 88227

Guest
Will it crash their systems if you text it to them???
 

Ocellaris

Fully [H]
Joined
Jan 1, 2008
Messages
19,055
This doesn’t crash iOS Safari, all you people posting the symbol might now be crashing anyone :(
 

phillyboy

[H]ard|Gawd
Joined
Jun 3, 2006
Messages
1,203
No crashing on a Macbook here in Safari. However I unthoughtfully did it in Reminders and had it stuck in a crash loop in iOS and macOS. Cleared the reminder out through icloud.com on my windows machine, though it might have worked in Safari maybe.
 

toast0

[H]ard|Gawd
Joined
Jan 26, 2010
Messages
1,326
Hello Apple QA. Here is a simple test: create a test script that sends every Unicode character to the iMessage app. If it causes a crash, make note of the unicode character and create an issue for development to fix.
This isn't the first time they've had a bug like this. This is bad!

This is a great idea, but the problem is that these bugs are formed by combinations of unicode code points with some other weird unicode crap (zero-width non-joiner); the combinatorics of trying to find all the crashing sequences of 5 code points are pretty bleak; it might be a bit better if you only do 5 code points that are within one script combined with all the weird crap; but still it's pretty meh. Need to sandbox the text rendering (although that's got perf problems all over it)
 

naib

[H]ard|Gawd
Joined
Jul 26, 2013
Messages
1,289
That is really a dick move to post something that you know very well will cause issues with the intent of break people's systems.
Not sanitizing the inputs is a dick move. Not performing decent QA is a dick move. Charging the price that is charged WITHOUT these things is a dick move.
Not actually improving FROM THE LAST TIME THIS OCCURED is a dick move
 

HammerSandwich

[H]ard|Gawd
Joined
Nov 18, 2004
Messages
1,125
After years of mocking Microsoft's cumbersome UI, Apple has finally developed a good alternative to ctrl-alt-del!
 
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