7.5
HIGH
CVE-2018-16871
Linux Kernel NFS null pointer dereference vulnerability
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.

INFO

Published Date :

July 30, 2019, 5:15 p.m.

Last Modified :

Feb. 12, 2023, 11:32 p.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2018-16871 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2018-16871 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat enterprise_linux
2 Redhat enterprise_linux_desktop
3 Redhat enterprise_linux_server
4 Redhat enterprise_linux_workstation
5 Redhat enterprise_linux_server_aus
6 Redhat enterprise_linux_server_eus
7 Redhat enterprise_linux_server_tus
8 Redhat enterprise_linux_eus
9 Redhat developer_tools
10 Redhat mrg_realtime
1 Netapp h410c_firmware
2 Netapp cloud_backup
3 Netapp h300s_firmware
4 Netapp h500s_firmware
5 Netapp h700s_firmware
6 Netapp h410s_firmware
7 Netapp h300e_firmware
8 Netapp h500e_firmware
9 Netapp h700e_firmware
1 Linux linux_kernel
: Total Affected Vendor : 3 | Products : 20
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-16871.

URL Resource
https://access.redhat.com/errata/RHSA-2019:2696 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2730 Third Party Advisory
https://access.redhat.com/errata/RHSA-2020:0740 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16871 Issue Tracking Third Party Advisory
https://security.netapp.com/advisory/ntap-20211004-0002/ Third Party Advisory
https://support.f5.com/csp/article/K18657134 Third Party Advisory
https://support.f5.com/csp/article/K18657134?utm_source=f5support&amp%3Butm_medium=RSS

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

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vincent-deng/veracode-container-security-finding-parser

Map Vulnerabilities into Different Layers of the Container Image

Python

Updated: 1 year, 8 months ago
1 stars 0 fork 0 watcher
Born at : Oct. 5, 2022, 12:07 p.m. This repo has been linked 1276 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-16871 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2018-16871 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 12, 2023

    Action Type Old Value New Value
    Changed Description A flaw was found in the Linux kernel's NFS implementation. 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. 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.
    Removed Reference https://access.redhat.com/errata/RHSA-2019:1873 [No Types Assigned]
    Removed Reference https://access.redhat.com/errata/RHSA-2019:1891 [No Types Assigned]
    Removed Reference https://access.redhat.com/errata/RHSA-2020:1567 [No Types Assigned]
    Removed Reference https://access.redhat.com/errata/RHSA-2020:1769 [No Types Assigned]
    Removed Reference https://access.redhat.com/security/cve/CVE-2018-16871 [No Types Assigned]
    Removed Reference https://bugzilla.redhat.com/show_bug.cgi?id=1655162 [No Types Assigned]
    Added CWE Red Hat, Inc. CWE-476
  • CVE Modified by [email protected]

    Feb. 02, 2023

    Action Type Old Value New Value
    Changed 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. A flaw was found in the Linux kernel's NFS implementation. 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.
    Removed Reference https://support.f5.com/csp/article/K18657134?utm_source=f5support&utm_medium=RSS [Third Party Advisory]
    Added Reference https://access.redhat.com/errata/RHSA-2019:1891 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2019:1873 [No Types Assigned]
    Added Reference https://support.f5.com/csp/article/K18657134?utm_source=f5support&amp%3Butm_medium=RSS [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2020:1769 [No Types Assigned]
    Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=1655162 [No Types Assigned]
    Added Reference https://access.redhat.com/errata/RHSA-2020:1567 [No Types Assigned]
    Added Reference https://access.redhat.com/security/cve/CVE-2018-16871 [No Types Assigned]
    Removed CWE Red Hat, Inc. CWE-476
  • Modified Analysis by [email protected]

    Apr. 11, 2022

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://access.redhat.com/errata/RHSA-2019:2696 No Types Assigned https://access.redhat.com/errata/RHSA-2019:2696 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2019:2730 No Types Assigned https://access.redhat.com/errata/RHSA-2019:2730 Third Party Advisory
    Changed Reference Type https://access.redhat.com/errata/RHSA-2020:0740 No Types Assigned https://access.redhat.com/errata/RHSA-2020:0740 Third Party Advisory
    Changed Reference Type https://security.netapp.com/advisory/ntap-20211004-0002/ No Types Assigned https://security.netapp.com/advisory/ntap-20211004-0002/ Third Party Advisory
    Changed Reference Type https://support.f5.com/csp/article/K18657134 No Types Assigned https://support.f5.com/csp/article/K18657134 Third Party Advisory
    Changed Reference Type https://support.f5.com/csp/article/K18657134?utm_source=f5support&utm_medium=RSS No Types Assigned https://support.f5.com/csp/article/K18657134?utm_source=f5support&utm_medium=RSS Third Party Advisory
    Changed CPE Configuration OR *cpe:2.3:a:redhat:developer_tools:1.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* OR *cpe:2.3:a:redhat:developer_tools:1.0:*:*:*:*:*:*:* *cpe:2.3:a:redhat:mrg_realtime:2.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:7.4:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* OR cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 04, 2021

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20211004-0002/ [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 11, 2020

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2020:0740 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CVSS V3 Red Hat, Inc. AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Added Reference https://support.f5.com/csp/article/K18657134?utm_source=f5support&utm_medium=RSS [No Types Assigned]
    Added CWE Red Hat, Inc. CWE-476
  • CVE Modified by [email protected]

    Oct. 07, 2019

    Action Type Old Value New Value
    Added Reference https://support.f5.com/csp/article/K18657134 [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 11, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:2730 [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 10, 2019

    Action Type Old Value New Value
    Added Reference https://access.redhat.com/errata/RHSA-2019:2696 [No Types Assigned]
  • Initial Analysis by [email protected]

    Aug. 06, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16871 No Types Assigned https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16871 Issue Tracking, Third Party Advisory
    Added CWE CWE-476
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.0 up to (including) 4.20
    Added CPE Configuration OR *cpe:2.3:a:redhat:developer_tools:1.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:*:*:*:*:*:*:* *cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-16871 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-16871 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.90 }} 0.12%

score

0.82871

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: