CVE-2018-14646

Name: CVE-2018-14646
Creator: NVD / NIST
Published: 2018-11-26T19:29:00.247+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 0.39%

Last modified Jun 17, 2026

CVE-2018-14646 is a vulnerability of currently unknown severity. The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.. EPSS estimates a 0.39% chance of exploitation in the next 30 days.

Description

The Linux kernel before 4.15-rc8 was found to be vulnerable to a NULL pointer dereference bug in the __netlink_ns_capable() function in the net/netlink/af_netlink.c file. A local attacker could exploit this when a net namespace with a netnsid is assigned to cause a kernel panic and a denial of service.

Metrics

EPSS Probability

0.39%

31.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions	Update
Linux	Linux Kernel	<= 4.14	—
Linux	Linux Kernel	4.15	Rc1
Redhat	Enterprise Linux Desktop	7.0	—
Redhat	Enterprise Linux Server	7.0	—
Redhat	Enterprise Linux Server Aus	7.6	—
Redhat	Enterprise Linux Server Eus	7.5	—
Redhat	Enterprise Linux Server Eus	7.6	—
Redhat	Enterprise Linux Server Tus	7.6	—
Redhat	Enterprise Linux Workstation	7.0	—

References

https://access.redhat.com/errata/RHSA-2018:3651Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:3666Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:3843Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14646Issue Tracking, Patch, Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f428fe4a04cc339166c8bbd489789760de3a0ceePatch, Third Party Advisory
https://marc.info/?l=linux-netdev&m=151500466401174&w=2Patch, Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3651Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:3666Vendor Advisory
https://access.redhat.com/errata/RHSA-2018:3843Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14646Issue Tracking, Patch, Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f428fe4a04cc339166c8bbd489789760de3a0ceePatch, Third Party Advisory
https://marc.info/?l=linux-netdev&m=151500466401174&w=2Patch, Third Party Advisory

Timeline

Published: Nov 26, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-14646?

How severe is CVE-2018-14646?

Severity scoring for CVE-2018-14646 is pending analysis. The EPSS model estimates a 0.39% probability of exploitation in the next 30 days.

How do I fix CVE-2018-14646?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-14646?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST