Bug 1960496 (CVE-2020-26143) - CVE-2020-26143 kernel: accepting fragmented plaintext frames in protected networks
Summary: CVE-2020-26143 kernel: accepting fragmented plaintext frames in protected net...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-26143
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 1960497 1961930 1961931 1972034
Blocks: 1959275
TreeView+ depends on / blocked
 
Reported: 2021-05-14 03:40 UTC by Dhananjay Arunesh
Modified: 2022-04-17 21:23 UTC (History)
43 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
A vulnerability was found in Linux kernel, where the WiFi implementations assemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.
Clone Of:
Environment:
Last Closed: 2021-11-09 20:52:18 UTC

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 17:23:04 UTC
Red Hat Product Errata RHSA-2021:4356 0 None None None 2021-11-09 18:26:12 UTC

Description Dhananjay Arunesh 2021-05-14 03:40:17 UTC 
A vulnerability was found in Linux Kernel, where the wifi implementations eassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.

Upstream patch:
https://lore.kernel.org/linux-wireless/20210511180259.159598-1-johannes@sipsolutions.net/
Comment 1 Dhananjay Arunesh 2021-05-14 03:40:55 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1960497]
Comment 16 errata-xmlrpc 2021-11-09 17:23:01 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 17 errata-xmlrpc 2021-11-09 18:26:10 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 18 Product Security DevOps Team 2021-11-09 20:52:14 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-2020-26143
Comment 19 Justin M. Forbes 2022-01-14 16:01:02 UTC 
This was fixed for Fedora with the 5.12.9 stable kernel updates.
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