Unscored CVE-2020-26142 EUVD-2020-18769GHSA-f2g3-x645-4qw2

An issue was discovered in the kernel in OpenBSD 6.6. The WEP, WPA, WPA2, and WPA3 implementations treat fragmented frames as full frames. …

Published May 11, 2021 · Updated Aug 4, 2024 · Assigned by mitre

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Description

An issue was discovered in the kernel in OpenBSD 6.6. The WEP, WPA, WPA2, and WPA3 implementations treat fragmented frames as full frames. An adversary can abuse this to inject arbitrary network packets, independent of the network configuration.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

Ubuntu

Security tracker ↗

Release	Package	Fixed in	Advisory
Ubuntu Nvidia-BlueField 24.04 LTS	linux-bluefield	No fix yet	—
Ubuntu Nvidia-BlueField 22.04 LTS	linux-bluefield	No fix yet	—
Ubuntu 26.10	linux +8	No fix yet	—
Ubuntu 26.04 LTS	linux +14	No fix yet	—
Ubuntu 25.10	linux +8	No fix yet	—

Show 20 more (older releases, extended support, other products)

Release	Package	Fixed in	Advisory
Ubuntu 24.04 LTS	linux +53	No fix yet	—
Ubuntu 22.04 LTS	linux +59	No fix yet	—
Ubuntu 20.04 LTS	linux-gke +27	No fix yet	—
Ubuntu 18.04 LTS	linux-gcp +15	No fix yet	—
Ubuntu 16.04 LTS	linux-hwe-edge	No fix yet	—
Ubuntu Pro Realtime 24.04 LTS	linux-realtime +3	No fix yet	—
Ubuntu Pro Realtime 22.04 LTS	linux-realtime +2	No fix yet	—
Ubuntu Pro FIPS 20.04 LTS	linux-fips +3	No fix yet	—
Ubuntu Pro FIPS 18.04 LTS	linux-fips +3	No fix yet	—
Ubuntu Pro FIPS 16.04 LTS	linux-fips	No fix yet	—
Ubuntu Pro FIPS-updates 24.04 LTS	linux-fips +3	No fix yet	—
Ubuntu Pro FIPS-updates 22.04 LTS	linux-fips +3	No fix yet	—
Ubuntu Pro FIPS-updates 20.04 LTS	linux-fips +3	No fix yet	—
Ubuntu Pro FIPS-updates 18.04 LTS	linux-fips +3	No fix yet	—
Ubuntu Pro FIPS-updates 16.04 LTS	linux-fips	No fix yet	—
Ubuntu Pro FIPS-preview 22.04 LTS	linux-fips +3	No fix yet	—
Ubuntu Pro 20.04 LTS	linux +21	No fix yet	—
Ubuntu Pro 18.04 LTS	linux +12	No fix yet	—
Ubuntu Pro 16.04 LTS	linux +7	No fix yet	—
Ubuntu Pro 14.04 LTS	linux +3	No fix yet	—

Oracle Linux

Release	Package	Fixed in	Advisory
Oracle Linux 7	kernel-uek +5	4.1.12-124.54.6.1.el7uek	ELSA-2021-9459

Advisories 3

WID-SEC-2022-2069 IEEE 802.11 (WLAN): Mehrere Schwachstellen BSI CERT-Bund (WID) · Jul 9, 2025
ELSA-2021-9459 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Sep 22, 2021
ICSA-21-236-01 Hitachi ABB Power Grids TropOS CISA ICS & IT advisories · Aug 24, 2021

References