[MacTUG] Kernel-memory-leaking Intel processor design flaw forces Linux, Windows redesign • The Register
m3griffi
m3griffi at uwaterloo.ca
Wed Jan 3 16:03:45 EST 2018
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Updated to add
The Intel processor flaw is real. A PhD student at the systems and
network security group at Vrije Universiteit Amsterdam has developed a
proof-of-concept program that exploits the Chipzilla flaw to read kernel
memory from user mode:
Bingo! #kpti #intelbug pic.twitter.com/Dml9g8oywk
— brainsmoke (@brainsmoke) January 3, 2018
The Register has also seen proof-of-concept exploit code that leaks a
tiny amount of kernel memory to user processes.
Finally, macOS has been patched to counter the chip design blunder since
version 10.13.2, according to operating system kernel expert Alex
Ionescu. And it appears 64-bit ARM Linux kernels will also get a set of
KAISER patches, completely splitting the kernel and user spaces, to
block attempts to defeat KASLR. We'll be following up this week.
https://www.theregister.co.uk/2018/01/02/intel_cpu_design_flaw/
"""
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