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CVE-2019-18282 (GCVE-0-2019-18282)

Vulnerability from cvelistv5 – Published: 2020-01-16 15:22 – Updated: 2024-08-05 01:47
VLAI
Summary
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.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE
  • n/a
Assigner
References
Show details on NVD website
To clipboard 

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Esto afecta a net / core / flow_dissector.c y al c\u00f3digo 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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T06:58:04+00:00",
      "cve": "CVE-2019-18282",
      "id": "CVE-2019-18282",
      "initial_release_date": "2019-10-22T00:00:00+00:00",
      "product_status:fixed": "335",
      "product_status:known_affected": "43",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: The flow_dissector feature allows device tracking",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-18282.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T02:33:33Z",
      "cve": "CVE-2019-18282",
      "id": "CVE-2019-18282",
      "initial_release_date": "2023-02-15T04:07:11Z",
      "product_status:known_not_affected": "445",
      "product_status:recommended": "33",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2019-18282",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2019-18282.json",
      "version": "32"
    }
  }
}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.