CVE-2021-3732

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.

CVSS v3 5.5 MEDIUM
CVSS v2.0 2.1 LOW

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

2.1^/10

CVSS v2.0 : LOW

Vector : AV:L/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 3.9 / Impact : 2.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:5.14:-::::::
	cpe:2.3:o:linux:linux_kernel:5.14:rc1::::::
	cpe:2.3:o:linux:linux_kernel:5.14:rc2::::::
	cpe:2.3:o:linux:linux_kernel:5.14:rc3::::::
	cpe:2.3:o:linux:linux_kernel:5.14:rc4::::::
	cpe:2.3:o:linux:linux_kernel:5.14:rc5::::::

History

No history.

Information

Published : 2022-03-10 17:42

Updated : 2024-11-21 06:22

NVD link : CVE-2021-3732

Mitre link : CVE-2021-3732

CVE.ORG link : CVE-2021-3732

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-200

Exposure of Sensitive Information to an Unauthorized Actor

NVD-CWE-noinfo

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