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[email protected]CVE-2018-16884

HistoryDec 18, 2018 - 10:29 p.m.

CVE-2018-16884

2018-12-1822:29:04

CWE-416

[email protected]

web.nvd.nist.gov

336

linux

kernel

nfs41+

subsystem

memory corruption

system panic

vulnerability

cve-2018-16884

nvd

6.7 Medium

CVSS2

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

COMPLETE

AV:A/AC:L/Au:S/C:P/I:P/A:C

8 High

CVSS3

Attack Vector

ADJACENT

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.8 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

28.1%

JSON

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.

Affected configurations

NVD

Node

linuxlinux_kernelRange3.7–3.16.65

linuxlinux_kernelRange3.17–3.18.133

linuxlinux_kernelRange3.19–4.4.171

linuxlinux_kernelRange4.5–4.9.151

linuxlinux_kernelRange4.10–4.14.94

linuxlinux_kernelRange4.15–4.19.16

linuxlinux_kernelRange4.20–4.20.3

Node

redhatenterprise_linuxMatch7.0

redhatenterprise_mrgMatch2.0

Node

debiandebian_linuxMatch8.0

Node

canonicalubuntu_linuxMatch14.04lts

canonicalubuntu_linuxMatch16.04lts

CPENameOperatorVersion
linux:linux_kernellinux linux kernellt3.16.65
linux:linux_kernellinux linux kernellt3.18.133
linux:linux_kernellinux linux kernellt4.4.171
linux:linux_kernellinux linux kernellt4.9.151
linux:linux_kernellinux linux kernellt4.14.94
linux:linux_kernellinux linux kernellt4.19.16
linux:linux_kernellinux linux kernellt4.20.3

CPE	Name	Operator	Version
linux:linux_kernel	linux linux kernel	lt	3.16.65
linux:linux_kernel	linux linux kernel	lt	3.18.133
linux:linux_kernel	linux linux kernel	lt	4.4.171
linux:linux_kernel	linux linux kernel	lt	4.9.151
linux:linux_kernel	linux linux kernel	lt	4.14.94
linux:linux_kernel	linux linux kernel	lt	4.19.16
linux:linux_kernel	linux linux kernel	lt	4.20.3

CNA Affected

[
  {
    "product": "kernel:",
    "vendor": "[UNKNOWN]",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]