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Re: CVE-2020-3702: Firmware updates for ath9k and ath10k chips

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On Monday 10 August 2020 11:01:26 Pali Rohár wrote:
> Hello!
> 
> ESET engineers on their blog published some information about new
> security vulnerability CVE-2020-3702 in ath9k wifi cards:
> https://www.welivesecurity.com/2020/08/06/beyond-kr00k-even-more-wifi-chips-vulnerable-eavesdropping/
> 
> According to Qualcomm security bulletin this CVE-2020-3702 affects also
> some Qualcomm IPQ chips which are handled by ath10k driver:
> https://www.qualcomm.com/company/product-security/bulletins/august-2020-security-bulletin#_cve-2020-3702
> 
> Kalle, could you or other people from Qualcomm provide updated and fixed
> version of ath9k and ath10k firmwares in linux-firmware git repository?
> 
> According to Qualcomm security bulletin this issue has Critical security
> rating, so I think fixed firmware files should be updated also in stable
> releases of linux distributions.

Hello!

Qualcomm has already sent following statement to media:

    Qualcomm has already made mitigations available to OEMs in May 2020,
    and we encourage end users to update their devices as patches have
    become available from OEMs.

And based on information from ESET blog post, Qualcomm's proprietary
driver for these wifi cards is fixed since Qualcomm July release.

Could somebody react and provide some details when fixes would be
available for ath9k and ath10k Linux drivers? And what is current state
of this issue for Linux?

I'm looking at ath9k and ath10k git trees [1] [2] [3] and I do not see
there any change which could be related to CVE-2020-3702.

Based on ESET tests, wifi cards which use ath9k driver (opensource, not
that Qualcomm proprietary) are still vulnerable.


[1] - https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/log/ath10k
[2] - https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git/log/drivers/net/wireless/ath/ath10k?h=master-pending
[3] - https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git/log/drivers/net/wireless/ath/ath9k?h=master-pending



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