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MitreCVE-2019-18282

HistoryJan 16, 2020 - 4:15 p.m.

CVE-2019-18282

2020-01-1616:15:16

CWE-330

mitre

web.nvd.nist.gov

301

linux kernel

cve

vulnerability

device tracking

udp

ipv6

flow_dissector

hashrnd

jhash

siphash

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

CVSS3

5.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

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

AI Score

Confidence

High

EPSS

0.002

Percentile

64.8%

JSON

The flow_dissector feature in the Linux kernel 4.3 through 5.x before 5.3.10 has a device tracking vulnerability, aka CID-55667441c84f. This occurs because the auto flowlabel of a UDP IPv6 packet relies on a 32-bit hashrnd value as a secret, and because jhash (instead of siphash) is used. The hashrnd value remains the same starting from boot time, and can be inferred by an attacker. This affects net/core/flow_dissector.c and related code.

Affected configurations

Nvd

Node

linuxlinux_kernelRange4.3–5.3.10

Node

debiandebian_linuxMatch8.0

Node

netappa700s_firmwareMatch-

AND

netappa700sMatch-

Node

netapp8300_firmwareMatch-

AND

netapp8300Match-

Node

netapp8700_firmwareMatch-

AND

netapp8700Match-

Node

netappa400_firmwareMatch-

AND

netappa400Match-

Node

netapph610s_firmwareMatch-

AND

netapph610sMatch-

Node

netappactive_iq_unified_managerMatch-vmware_vsphere

netappcloud_backupMatch-

netappdata_availability_servicesMatch-

netappe-series_santricity_os_controllerRange11.0.0–11.70.1

netapphci_management_nodeMatch-

netappsolidfireMatch-

netappsteelstore_cloud_integrated_storageMatch-

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
debiandebian_linux8.0cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
netappa700s_firmware-cpe:2.3:o:netapp:a700s_firmware:-:*:*:*:*:*:*:*
netappa700s-cpe:2.3:h:netapp:a700s:-:*:*:*:*:*:*:*
netapp8300_firmware-cpe:2.3:o:netapp:8300_firmware:-:*:*:*:*:*:*:*
netapp8300-cpe:2.3:h:netapp:8300:-:*:*:*:*:*:*:*
netapp8700_firmware-cpe:2.3:o:netapp:8700_firmware:-:*:*:*:*:*:*:*
netapp8700-cpe:2.3:h:netapp:8700:-:*:*:*:*:*:*:*
netappa400_firmware-cpe:2.3:o:netapp:a400_firmware:-:*:*:*:*:*:*:*
netappa400-cpe:2.3:h:netapp:a400:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
debian	debian_linux	8.0	cpe:2.3:o:debian:debian_linux:8.0:::::::*
netapp	a700s_firmware	-	cpe:2.3:o:netapp:a700s_firmware:-:::::::*
netapp	a700s	-	cpe:2.3:h:netapp:a700s:-:::::::*
netapp	8300_firmware	-	cpe:2.3:o:netapp:8300_firmware:-:::::::*
netapp	8300	-	cpe:2.3:h:netapp:8300:-:::::::*
netapp	8700_firmware	-	cpe:2.3:o:netapp:8700_firmware:-:::::::*
netapp	8700	-	cpe:2.3:h:netapp:8700:-:::::::*
netapp	a400_firmware	-	cpe:2.3:o:netapp:a400_firmware:-:::::::*
netapp	a400	-	cpe:2.3:h:netapp:a400:-:::::::*