Re:Google, Xiaomi, and Huawei affected by zero-day flaw that...
by westmeal on Saturday October 05, 2019 @11:17PM
(#21169611)
The new Android devices also have hardened kernels but it doesn't really matter phones are insecure as fuck in other ways.
Re:Google, Xiaomi, and Huawei affected by zero-day flaw that...
by justinjlynn on Sunday October 06, 2019 @04:03AM
(#21170518)
Indeed. Who the hell thought it was a great idea for the modem baseband device to have unlimited direct memory access to the host processor memory space? I mean, especially when the baseband firmware can usually be remotely updated by the network with zero user interaction?!
Re:Google, Xiaomi, and Huawei affected by zero-day flaw that...
by posix_me_less on Sunday October 06, 2019 @05:32AM
(#21170866)
> have unlimited direct memory access to the host processor memory space
Can you give some reference for that claim?
Re:Google, Xiaomi, and Huawei affected by zero-day flaw that...
by jsjohnst on Sunday October 06, 2019 @08:08AM
(#21171526)
https://www.usenix.org/system/files/conference/woot12/woot12...
If you want more, literally google “baseband attack host processor memory” or “baseband exploits DMA” or “baseband exploits memory”.
https://www.theverge.com/2016/4/14/11434926/blackberry-encry...
Also AFAIK Blackberry only provided a hardened kernel with a single device in 2015 called Priv. I haven't heard anything from them since... maybe someone could correct me here.