All CVE records
CVE-2021-3493 — Linux Kernel Privilege Escalation Vulnerability
CISA KEV listed
Added October 20, 2022 Remediate by November 10, 2022
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
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7c03e2cda4a584cadc398e8f6641ca9988a39d52; https://nvd.nist.gov/vuln/detail/CVE-2021-3493
Need help remediating this vulnerability?
Our team helps organizations patch, mitigate, and respond to CISA KEV advisories fast.