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Centos Linux: CVE-2021-20321: Moderate: kernel security and bug fix update (Multiple Advisories)

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Centos Linux: CVE-2021-20321: Moderate: kernel security and bug fix update (Multiple Advisories)

Severity
5
CVSS
(AV:L/AC:M/Au:N/C:N/I:N/A:C)
Published
12/21/2021
Created
12/23/2021
Added
12/22/2021
Modified
03/14/2022

Description

A race condition accessing file object in the Linux kernel OverlayFS subsystem was found in the way users do rename in specific way with OverlayFS. A local user could use this flaw to crash the system.

Solution(s)

  • centos-upgrade-kernel
  • centos-upgrade-kernel-rt

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