oss-sec mailing list archives

Re: New pagecache based sidechannel attack published


From: Marcus Meissner <meissner () suse de>
Date: Mon, 7 Jan 2019 17:36:08 +0100

On Mon, Jan 07, 2019 at 08:43:40AM +0100, Marcus Meissner wrote:
Hi,

https://www.theregister.co.uk/2019/01/05/boffins_beat_page_cache/
https://arxiv.org/abs/1901.01161

Daniel Gruss, Erik Kraft, Trishita Tiwari, Michael Schwarz, Ari Trachtenberg, Jason Hennessey, Alex Ionescu, Anders 
Fogh
have published a paper describing side channels attacks using OS pagecache statistics, allowing looking at
things like keystroke timing and others.

This affects not just Linux, but also Windows and potentially other OS.

Linux mainline patch:
  
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=574823bfab82d9d8fa47f422778043fbb4b4f50e

I have requested a Linux specific CVE.

CVE-2019-5489 was assigned.

Ciao, Marcus


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