>Especially if they claim a vulnerability that's exploitable by only sending a t... | Hacker News

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		alasdair_ on Jan 30, 2019 \| parent \| context \| favorite \| on: 'Karma': A hack used by the UAE to break into iPho... >Especially if they claim a vulnerability that's exploitable by only sending a text. For some time, it was possible to crash some iPhones by texting them a Taiwanese flag emoji (which was censored by mainland China). https://www.cultofmac.com/561635/apples-taiwanese-flag-ban-l... I don't know offhand if this was a buffer overflow or something else, but if you can crash the OS with a text, you . could likely exploit it instead.

saagarjha on Jan 30, 2019 [–]

> I don't know offhand if this was a buffer overflow or something else

It was an issue when the device's local was set incorrectly and would return NULL, leading to a crash in CFStringCompare.

alasdair_ on Jan 31, 2019 | [–]

Many thanks!

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