vulnerability
Arch Linux: Privilege escalation (CVE-2021-33909)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | Jul 20, 2021 | Jul 11, 2025 | Nov 27, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Jul 20, 2021
Added
Jul 11, 2025
Modified
Nov 27, 2025
Description
An privilege escalation security issue has been found in the filesystem layer of the Linux kernel before version 5.13.4. An unprivileged local attacker can obtain full root privileges by creating, mounting, and deleting a deep directory structure whose total path length exceeds 1GB, which leads to an uncontrolled out-of-bounds write.
Solution
arch-linux-upgrade-latest
References
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