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CVE-2021-3493

KEV

Linux Kernel Privilege Escalation Vulnerability

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Vendor / Project
Linux
Product
Kernel
Date added
Oct 20, 2022
Due date
Nov 10, 2022
Known ransomware use
Unknown
CWEs
CWE-862

Description

The overlayfs stacking file system in Linux kernel does not properly validate the application of file capabilities against user namespaces, which could lead to privilege escalation.

Required action

Apply updates per vendor instructions.

Notes