CVE-2018-14646

MEDIUM

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.

References

https://access.redhat.com/errata/RHSA-2018:3651

https://access.redhat.com/errata/RHSA-2018:3666

https://access.redhat.com/errata/RHSA-2018:3843

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14646

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=f428fe4a04cc339166c8bbd489789760de3a0cee

https://marc.info/?l=linux-netdev&m=151500466401174&w=2

Details

Source: MITRE

Published: 2018-11-26

Updated: 2019-10-09

Type: CWE-476

Risk Information

CVSS v2.0

Base Score: 4.9

Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C

Impact Score: 6.9

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3.0

Base Score: 5.5

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 1.8

Severity: MEDIUM