CVE-2021-3732
MEDIUM
5.5
CVSS Score
Published: March 7, 2022 at 01:56 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
2 products affected across 2 vendorsLinux KernelKernel
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.4%
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
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (4)
x_refsource_MISCIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1995249x_refsource_MISCMailing ListPatchVendor Advisory
Source: [email protected]
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=427215d85e8d1476da1a86b8d67aceb485eb3631x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/torvalds/linux/commit/427215d85e8d1476da1a86b8d67aceb485eb3631x_refsource_MISCThird Party Advisory
Source: [email protected]
https://ubuntu.com/security/CVE-2021-3732CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-200NVD-CWE-noinfo
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