Bug 1960492 (CVE-2020-26141)

Summary:	CVE-2020-26141 kernel: not verifying TKIP MIC of fragmented frames
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	acaringi, adscvr, airlied, alciregi, bhu, blc, bmasney, brdeoliv, bskeggs, chwhite, crwood, dhoward, dvlasenk, fhrbata, fpacheco, hdegoede, hkrzesin, ihuguet, jarodwilson, jeremy, jforbes, jlelli, jonathan, josef, jshortt, jstancek, jwboyer, kcarcia, kernel-maint, kernel-mgr, lgoncalv, linville, masami256, mchehab, mlangsdo, nmurray, ptalbert, qzhao, rvrbovsk, steved, walters, wcosta, williams, wmealing
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	kernel 5.13 rc4	Doc Type:	If docs needed, set a value
Doc Text:	A vulnerability was found in Linux kernel's WiFi implementation. An attacker within wireless range can inject a control packet fragment where the kernel does not verify the Message Integrity Check (authenticity) of fragmented TKIP frames.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2021-11-09 20:51:43 UTC	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:	1960493, 1960525, 1960526, 1960527, 1978181
Bug Blocks:	1959275

Description Dhananjay Arunesh 2021-05-14 03:33:25 UTC

A vulnerability was found in Linux Kernel's Wi-Fi implementation.  An attacker within wireless range can inject a control packet fragment where the kernel does not verify the Message Integrity Check (authenticity) of fragmented TKIP frames.

Upstream patch:
https://lore.kernel.org/linux-wireless/20210511180259.159598-1-johannes@sipsolutions.net/
https://lore.kernel.org/linux-wireless/20210511200110.c3f1d42c6746.I795593fcaae941c471425b8c7d5f7bb185d29142@changeid/

Comment 1 Dhananjay Arunesh 2021-05-14 03:33:57 UTC

Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1960493]

Comment 6 Wade Mealing 2021-05-14 05:36:25 UTC

Mitigation:

Mitigation for this issue is either not available or the currently available options does not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Comment 20 Justin M. Forbes 2021-06-29 16:21:31 UTC

This was fixed for Fedora with the 5.12.9 stable kernel updates.

Comment 22 Íñigo Huguet 2021-08-12 09:25:49 UTC

Maybe this patch is also a fix for this? https://lore.kernel.org/linux-wireless/20210511200110.430e8c202313.Ia37e4e5b6b3eaab1a5ae050e015f6c92859dbe27@changeid/

Comment 24 errata-xmlrpc 2021-11-09 17:22:54 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:4140 https://access.redhat.com/errata/RHSA-2021:4140

Comment 25 errata-xmlrpc 2021-11-09 18:26:03 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2021:4356 https://access.redhat.com/errata/RHSA-2021:4356

Comment 26 Product Security DevOps Team 2021-11-09 20:51:39 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-26141