CVE Vulnerability

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.

2.1 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

5.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

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

References
Link Resource
https://ubuntu.com/security/CVE-2021-3732 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1995249 Issue Tracking Patch
https://github.com/torvalds/linux/commit/427215d85e8d1476da1a86b8d67aceb485eb3631 Patch Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=427215d85e8d1476da1a86b8d67aceb485eb3631 Mailing List Patch
Configurations

Configuration 1

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:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*
Information

Published : 2022-03-10 05:42

Updated : 2022-12-13 07:50

NVD link : CVE-2021-3732

Mitre link : CVE-2021-3732

Products Affected
No products.
CWE
NVD-CWE-noinfo