Bug 1960500 (CVE-2020-26145) - CVE-2020-26145 kernel: accepting plaintext broadcast fragments as full frames
Summary: CVE-2020-26145 kernel: accepting plaintext broadcast fragments as full frames
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-26145
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 1960501 1977751 1977752
Blocks: 1959275
TreeView+ depends on / blocked
 
Reported: 2021-05-14 03:47 UTC by Dhananjay Arunesh
Modified: 2021-11-09 20:53 UTC (History)
44 users (show)

Fixed In Version: Kernel 5.13
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in ath10k_htt_rx_proc_rx_frag_ind_hl in drivers/net/wireless/ath/ath10k/htt_rx.c in the Linux kernel WiFi implementations, where it accepts a second (or subsequent) broadcast fragments even when sent in plaintext and then process them as full unfragmented frames. The highest threat from this vulnerability is to integrity.
Clone Of:
Environment:
Last Closed: 2021-11-09 20:53:27 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 17:23:15 UTC
Red Hat Product Errata RHSA-2021:4356 0 None None None 2021-11-09 18:26:29 UTC

Description Dhananjay Arunesh 2021-05-14 03:47:08 UTC 
A flaw was found in ath10k_htt_rx_proc_rx_frag_ind_hl in drivers/net/wireless/ath/ath10k/htt_rx.c in the Linux kernel WiFi implementations, where it accepts a second (or subsequent) broadcast fragments even when sent in plaintext and then process them as full unfragmented frames. The highest threat from this vulnerability is to integrity.

upstream patch:
https://lore.kernel.org/linux-wireless/20210511180259.159598-1-johannes@sipsolutions.net/
https://lore.kernel.org/linux-wireless/20210511200110.9ca6ca7945a9.I1e18b514590af17c155bda86699bc3a971a8dcf4@changeid/
Comment 1 Dhananjay Arunesh 2021-05-14 03:47:39 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1960501]
Comment 13 Justin M. Forbes 2021-06-29 16:21:16 UTC 
This was fixed for Fedora with the 5.12.9 stable kernel updates.
Comment 19 errata-xmlrpc 2021-11-09 17:23:12 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 20 errata-xmlrpc 2021-11-09 18:26:26 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 21 Product Security DevOps Team 2021-11-09 20:53:22 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-2020-26145
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