SB2024062598 - Input validation error in Linux kernel mac80211
Published: June 25, 2024 Updated: May 13, 2025
Security Bulletin ID
SB2024062598
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 security vulnerability.
1) Input validation error (CVE-ID: CVE-2021-47611)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the ieee802_11_parse_elems_crc() function in net/mac80211/util.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/03029bb044ccee60adbc93e70713f3ae58abc3a1
- https://git.kernel.org/stable/c/a19cf6844b509d44ecbd536f33d314d91ecdd2b5
- https://git.kernel.org/stable/c/7fd214fc7f2ee3a89f91e717e3cfad55f5a27045
- https://git.kernel.org/stable/c/c62b16f98688ae7bc0ab23a6490481f4ce9b3a49
- https://git.kernel.org/stable/c/768c0b19b50665e337c96858aa2b7928d6dcf756
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.222
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.88
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.11
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.168