What is CVE-2018-16871?

CVE-2018-16871 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10, classified as a NULL Pointer Dereference flaw (CWE-476). CVE-2018-16871 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2018-16871?

CVE-2018-16871 has a CVSS score of 7.5 out of 10, rated High severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2018-16871?

No patch is currently available for CVE-2018-16871. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2018-16871 actively exploited?

CVE-2018-16871 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/476.html

CVE-2018-16871

High

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.

Package Linux Kernel

Published 2019-07-30

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.5

out of 10

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-476

CVE-2018-16871 is a NULL Pointer Dereference vulnerability

What is NULL Pointer Dereference?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2018-16871 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
https://access.redhat.com/errata/RHSA-2019:2696

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2019:2730

Third Party Advisory
Red Hat
https://access.redhat.com/errata/RHSA-2020:0740

Third Party Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16871

Issue Tracking Third Party Advisory
Security
https://security.netapp.com/advisory/ntap-20211004-0002/

Third Party Advisory
Support
https://support.f5.com/csp/article/K18657134

Third Party Advisory
Support
https://support.f5.com/csp/article/K18657134?utm_source=f5support&amp%3Butm_medium=RSS

Details

CVE ID CVE-2018-16871

Severity High

CVSS score 7.5 / 10

CVSS version 3.1

Published 2019-07-30

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2018-16871?

CVE-2018-16871 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 , classified as a NULL Pointer Dereference flaw (CWE-476) . CVE-2018-16871 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2018-16871?

CVE-2018-16871 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2018-16871?

No patch is currently available for CVE-2018-16871. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2018-16871 actively exploited?

No — CVE-2018-16871 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is NULL Pointer Dereference (CWE-476)?

The product dereferences a pointer that it expects to be valid but is NULL, typically causing a crash. View CWE-476 on MITRE CWE →