CVE-2021-3732 — Sensitive Information Exposure in Kernel
Severity
5.5MEDIUMNVD
OSV8.7OSV6.5OSV5.9
EPSS
0.0%
top 93.82%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 10
Latest updateApr 12
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NExploitability: 1.8 | Impact: 3.6
Affected Packages6 packages
Patches
🔴Vulnerability Details
11GHSA▶
GHSA-wc3f-5p43-3cxx: A security issue was found in Linux kernel’s OverlayFS subsystem where a local attacker who has the ability to mount the TmpFS filesystem with Overlay↗2022-03-11
OSV▶
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↗2022-03-10
OSV▶
linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-gke, linux-gke-5.4, linux-gkeop, linux-gkeop-5.4, linux-ibm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-↗2021-10-22
📋Vendor Advisories
13Microsoft▶
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 ↗2022-03-08