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.
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&%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).
Map Vulnerabilities into Different Layers of the Container Image
Python
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&%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:*:*:*:*:*:*:*
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