CVE-2019-18282

MEDIUM
5.3
CVSS Score
Published: January 16, 2020 at 03:22 PM UTC
Updated: June 17, 2026 at 02:24 AM UTC
19 products affected across 3 vendorsLinux KernelDebian LinuxActive IQ Unified Manager

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Severity
MEDIUM5.3
Exploit prediction
EPSS 3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

4.3 ≤ v ≤ 5.3.10
All versions
netapp-8300 (same device)
All versions
netapp-8700 (same device)
All versions
netapp-a400 (same device)
All versions
netapp-a700s (same device)
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-330

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