CVEvulnerability
CVE-2021-3732
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2022-03-10
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 2.1 LOW — AV:L/AC:L/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-200
Description
A flaw was found in the Linux kernel's OverlayFS subsystem in the way the user mounts the TmpFS filesystem with OverlayFS. This flaw allows a local user to gain access to hidden files that should not be accessible.
Affected configurations
• linux linux kernel (< 5.14)
• linux linux kernel 5.14
Related
Weakness · CWE (1)
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1995249 Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=427215d85e8d1476da1a86b8d67aceb485eb3631 Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/427215d85e8d1476da1a86b8d67aceb485eb3631 Patch, Third Party Advisory
- https://ubuntu.com/security/CVE-2021-3732 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1995249 Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=427215d85e8d1476da1a86b8d67aceb485eb3631 Mailing List, Patch, Vendor Advisory
- https://github.com/torvalds/linux/commit/427215d85e8d1476da1a86b8d67aceb485eb3631 Patch, Third Party Advisory
- https://ubuntu.com/security/CVE-2021-3732 Third Party Advisory