Bug 1960492 (CVE-2020-26141) - CVE-2020-26141 kernel: not verifying TKIP MIC of fragmented frames
Summary: CVE-2020-26141 kernel: not verifying TKIP MIC of fragmented frames
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-26141
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1978181 1960493 1960525 1960526 1960527
Blocks: 1959275
TreeView+ depends on / blocked
 
Reported: 2021-05-14 03:33 UTC by Dhananjay Arunesh
Modified: 2022-04-17 21:23 UTC (History)
44 users (show)

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.
Clone Of:
Environment:
Last Closed: 2021-11-09 20:51:43 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:4140 0 None None None 2021-11-09 17:22:57 UTC
Red Hat Product Errata RHSA-2021:4356 0 None None None 2021-11-09 18:26:05 UTC

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
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