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Oracle Linux: (CVE-2021-4157) (Multiple Advisories): kernel security, bug fix, and enhancement update

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Oracle Linux: (CVE-2021-4157) (Multiple Advisories): kernel security, bug fix, and enhancement update

Severity
7
CVSS
(AV:A/AC:M/Au:S/C:C/I:C/A:C)
Published
03/25/2022
Created
05/06/2022
Added
05/04/2022
Modified
05/18/2022

Description

An out of memory bounds write flaw (1 or 2 bytes of memory) in the Linux kernel NFS subsystem was found in the way users use mirroring (replication of files with NFS). A user, having access to the NFS mount, could potentially use this flaw to crash the system or escalate privileges on the system.

Solution(s)

  • oracle-linux-upgrade-kernel
  • oracle-linux-upgrade-kernel-uek
  • oracle-linux-upgrade-kernel-uek-debug
  • oracle-linux-upgrade-kernel-uek-debug-devel
  • oracle-linux-upgrade-kernel-uek-devel
  • oracle-linux-upgrade-kernel-uek-doc
  • oracle-linux-upgrade-kernel-uek-firmware

References

  • ELSA-2022-1988
  • CVE-2021-4157
  • USN-5413-1

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