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Red Hat: CVE-2020-26139: CVE-2020-26139 kernel: Forwarding EAPOL from unauthenticated wifi client (Multiple Advisories)

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Red Hat: CVE-2020-26139: CVE-2020-26139 kernel: Forwarding EAPOL from unauthenticated wifi client (Multiple Advisories)

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

Description

An issue was discovered in the kernel in NetBSD 7.1. An Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. This might be abused in projected Wi-Fi networks to launch denial-of-service attacks against connected clients and makes it easier to exploit other vulnerabilities in connected clients.

Solution(s)

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

References

  • CVE-2020-26139
  • RHSA-2021:4140
  • RHSA-2021:4356

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