#VU93171 Buffer overflow in Linux kernel - CVE-2021-47366
Published: June 24, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU93171
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-2021-47366
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 afs_fs_fetch_data(), afs_fs_store_data(), afs_fs_setattr_size() and afs_deliver_fs_get_capabilities() functions in fs/afs/fsclient.c, within the afs_fileserver_probe_result() and clear_bit() functions in fs/afs/fs_probe.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.