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Red Hat: CVE-2020-26147: CVE-2020-26147 kernel: reassembling mixed encrypted/plaintext fragments (Multiple Advisories)

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Red Hat: CVE-2020-26147: CVE-2020-26147 kernel: reassembling mixed encrypted/plaintext fragments (Multiple Advisories)

Severity
3
CVSS
(AV:A/AC:H/Au:N/C:P/I:P/A:N)
Published
05/11/2021
Created
11/11/2021
Added
11/10/2021
Modified
03/13/2024

Description

An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble 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.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • CVE-2020-26147
  • RHSA-2021:4140
  • RHSA-2021:4356

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