CVE-2018-16884

Published Dec 18, 2018

Last updated a year ago

Overview

Description
A flaw was found in the Linux kernel's NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.
Source
secalert@redhat.com
NVD status
Analyzed

Risk scores

CVSS 3.1

Type
Primary
Base score
8
Impact score
5.9
Exploitability score
2.1
Vector string
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity
HIGH

CVSS 3.0

Type
Secondary
Base score
6.5
Impact score
4.7
Exploitability score
1.3
Vector string
CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H
Severity
MEDIUM

CVSS 2.0

Type
Primary
Base score
6.7
Impact score
8.5
Exploitability score
5.1
Vector string
AV:A/AC:L/Au:S/C:P/I:P/A:C

Weaknesses

secalert@redhat.com
CWE-416
nvd@nist.gov
CWE-416

Social media

Hype score
Not currently trending

Configurations