#VU93239 Buffer overflow in Linux kernel - CVE-2021-47241
Published: June 25, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU93239
Vulnerability risk: Low
CVSSv4.0: 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
CVE-ID: CVE-2021-47241
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory corruption within the strset_reply_size() function in net/ethtool/strset.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/fb3a948143688e14e2cfd2a2812877923d0e5e92
- https://git.kernel.org/stable/c/cfc7f0e70d649e6d2233fba0d9390b525677d971
- https://git.kernel.org/stable/c/e175aef902697826d344ce3a12189329848fe898
- 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