SB2024062488 - Input validation error in Linux kernel mac80211
Published: June 24, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024062488
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Input validation error (CVE-ID: CVE-2021-47251)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the ieee80211_scan_rx() function in net/mac80211/scan.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/5a1cd67a801cf5ef989c4783e07b86a25b143126
- https://git.kernel.org/stable/c/d1b949c70206178b12027f66edc088d40375b5cb
- https://git.kernel.org/stable/c/e298aa358f0ca658406d524b6639fe389cb6e11e
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.46
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13