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Red Hat OpenShift: CVE-2018-16871: kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence

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Red Hat OpenShift: CVE-2018-16871: kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:P)
Published
07/30/2019
Created
12/30/2020
Added
12/29/2020
Modified
12/29/2020

Description

A flaw was found in the Linux kernel's NFS implementation, all versions 3.x and all versions 4.x up to 4.20. An attacker, who is able to mount an exported NFS filesystem, is able to trigger a null pointer dereference by using an invalid NFS sequence. This can panic the machine and deny access to the NFS server. Any outstanding disk writes to the NFS server will be lost.

Solution(s)

  • linuxrpm-upgrade-redhat-coreos

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