Improper privilege management in Linux kernel - CVE-2021-47072
Published: July 3, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU93737
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-47072
CWE-ID: CWE-269
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to read and manipulate data.
The vulnerability exists due to improperly imposed permissions within the btrfs_log_new_name() function in fs/btrfs/tree-log.c. A local user can read and manipulate data.
Affected software
Linux kernel
How to mitigate CVE-2021-47072
Install update from vendor's website.
Linux kernel - addressed in versions 5.12.7, 5.13