CVE-2021-47251

high

Description

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix skb length check in ieee80211_scan_rx() Replace hard-coded compile-time constants for header length check with dynamic determination based on the frame type. Otherwise, we hit a validation WARN_ON in cfg80211 later. [style fixes, reword commit message]

References

https://git.kernel.org/stable/c/e298aa358f0ca658406d524b6639fe389cb6e11e

https://git.kernel.org/stable/c/d1b949c70206178b12027f66edc088d40375b5cb

https://git.kernel.org/stable/c/5a1cd67a801cf5ef989c4783e07b86a25b143126

Details

Source: Mitre, NVD

Published: 2024-05-21

Updated: 2025-04-30

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.00065