NULL Pointer Dereference Affecting kernel-debug-modules package, versions <0:4.18.0-193.el8


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.9% (84th percentile)

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  • Snyk IDSNYK-ORACLE8-KERNELDEBUGMODULES-2558371
  • published10 Apr 2022
  • disclosed30 Jul 2019

Introduced: 30 Jul 2019

CVE-2018-16871  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Oracle:8 kernel-debug-modules to version 0:4.18.0-193.el8 or higher.
This issue was patched in ELSA-2020-1769.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-debug-modules package and not the kernel-debug-modules package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1