Bug 1960502 (CVE-2020-26146) - CVE-2020-26146 kernel: reassembling encrypted fragments with non-consecutive packet numbers
Summary: CVE-2020-26146 kernel: reassembling encrypted fragments with non-consecutive ...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-26146
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1978181 1960503 1977694 1977695 1977696
Blocks: 1959275
TreeView+ depends on / blocked
 
Reported: 2021-05-14 03:50 UTC by Dhananjay Arunesh
Modified: 2022-01-14 16:02 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 implementation reassemble fragments with non-consecutive packet numbers. An adversary can abuse this to exfiltrate selected fragments. This vulnerability is exploitable when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used. Note that WEP is vulnerable to this attack by design.
Clone Of:
Environment:
Last Closed: 2021-11-09 20:53:59 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 17:23:19 UTC
Red Hat Product Errata RHSA-2021:4356 0 None None None 2021-11-09 18:26:35 UTC

Description Dhananjay Arunesh 2021-05-14 03:50:45 UTC 
A vulnerability was found in Linux Kernel, where the wifi implementations reassemble fragments with non-consecutive packet numbers. An adversary can abuse this to exfiltrate selected fragments. This vulnerability is exploitable when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used. Note that WEP is vulnerable to this attack by design.

upstream patch:
https://lore.kernel.org/linux-wireless/20210511180259.159598-1-johannes@sipsolutions.net/
Comment 1 Dhananjay Arunesh 2021-05-14 03:51:22 UTC 
Created kernel tracking bugs for this issue:

Affects: fedora-all [bug 1960503]
Comment 18 errata-xmlrpc 2021-11-09 17:23:16 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 19 errata-xmlrpc 2021-11-09 18:26:33 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 20 Product Security DevOps Team 2021-11-09 20:53:56 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-2020-26146
Comment 21 Justin M. Forbes 2022-01-14 16:02:13 UTC 
This was fixed for Fedora with the 5.12.9 stable kernel updates.
Note You need to log in before you can comment on or make changes to this bug.