CVE-2019-18282

Medium

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.

Package Linux Kernel
Published 2020-01-16
Last modified 2024-11-21
CVSS version 3.1
Patch available
Awaiting data

CVSS 3.1 score

5.3

out of 10
Medium
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Weakness type

CWE-330

CVE-2019-18282 is classified as CWE-330

See CWE-330 on MITRE CWE for full details on this weakness type.

References

5 total

Frequently asked questions

  • What is CVE-2019-18282?

    CVE-2019-18282 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.3 out of 10 . CVE-2019-18282 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2019-18282?

    CVE-2019-18282 has a CVSS score of 5.3 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N .

  • Is there a patch available for CVE-2019-18282?

    Monitor the NIST NVD and your Linux distribution's security advisories for CVE-2019-18282 patch availability.

  • Is CVE-2019-18282 actively exploited?

    No. CVE-2019-18282 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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