Bug 2010852 (CVE-2020-3702)

Summary:	CVE-2020-3702 kernel: ath9k: information disclosure via specifically timed and handcrafted traffic
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, adscvr, airlied, alciregi, bdettelb, bhu, blc, chwhite, crwood, dvlasenk, hdegoede, hkrzesin, jarod, jarodwilson, jburrell, jeremy, jforbes, jglisse, jlelli, jonathan, josef, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, masami256, mchehab, mlangsdo, nmurray, ptalbert, qzhao, rvrbovsk, steved, vkumar, walters, williams
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel v5.6	Doc Type:	If docs needed, set a value
Doc Text:	A flaw was found in the Linux kernel's implementation of wireless drivers using the Atheros chipsets. An attacker within wireless range could send crafted traffic leading to information disclosure.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2010859, 2012649, 2012650
Bug Blocks:	2010456

Description Guilherme de Almeida Suckevicz 2021-10-05 14:02:51 UTC

'Specifically timed and handcrafted traffic can cause internal errors in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic' in certain Atherons based chipsets.  THis could allow an attacker to infer previous keys


References:
https://www.qualcomm.com/company/product-security/bulletins/august-2020-bulletin
https://www.arista.com/en/support/advisories-notices/security-advisories/11998-security-advisory-58
https://lore.kernel.org/linux-wireless/CABvG-CVvPF++0vuGzCrBj8+s=Bcx1GwWfiW1_Somu_GVncTAcQ@mail.gmail.com/
https://lore.kernel.org/stable/20210818084859.vcs4vs3yd6zetmyt@pali/t/#mf8b430d4f19f1b939a29b6c5098fdc514fd1a928

Comment 1 Guilherme de Almeida Suckevicz 2021-10-05 14:04:10 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 2010859]

Comment 2 Justin M. Forbes 2021-10-06 16:48:06 UTC

This was fixed for Fedora with the 5.12.x kernel rebases.