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CVE-2019-18282

Published: Jan 16, 2020Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-330
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
2.6%
Top 16.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:LI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-330

Affected Products

n/an/a
linux kernellinux
On-premOS
Operating Systems
debian linuxdebian
On-premOS
Operating Systems / linux-distro
a700s firmwarenetappHardware Firmware
8300 firmwarenetappHardware Firmware
linuxoss-projectOperating Systemsaka the linux kernel
debianoss-projectGBOperating Systemsaka debian gnu/linux
netappcommercialUSHardware Firmware
and 13 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Credential Access
View detailed technique mapping

References

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.10
cdn.kernel.org
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=55667441c84fa5e0911a0aac44fb059c15ba6da2
git.kernel.org
https://security.netapp.com/advisory/ntap-20200204-0002/
security.netapp.com
and 14 more references View all →

Timeline

Published
Jan 16, 2020
Last Updated
Nov 21, 2024

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