Missing Authentication for Critical Function Affecting firmware-nonfree package, versions <20210818-1


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
3.61% (90th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-FIRMWARENONFREE-1312494
  • published12 May 2021
  • disclosed11 May 2021

Introduced: 11 May 2021

CVE-2020-24588  (opens in a new tab)
CWE-306  (opens in a new tab)

How to fix?

Upgrade Debian:unstable firmware-nonfree to version 20210818-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firmware-nonfree package and not the firmware-nonfree package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets.

CVSS Base Scores

version 3.1