fkie_cve-2019-18282
Vulnerability from fkie_nvd
Published
2020-01-16 16:15
Modified
2024-11-21 04:32
Severity ?
5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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.
References
cve@mitre.orghttps://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.10Mailing List, Vendor Advisory
cve@mitre.orghttps://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=55667441c84fa5e0911a0aac44fb059c15ba6da2Mailing List, Patch, Vendor Advisory
cve@mitre.orghttps://lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlMailing List, Third Party Advisory
cve@mitre.orghttps://security.netapp.com/advisory/ntap-20200204-0002/Third Party Advisory
cve@mitre.orghttps://www.computer.org/csdl/proceedings-article/sp/2020/349700b594/1j2LgrHDR2oThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.10Mailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=55667441c84fa5e0911a0aac44fb059c15ba6da2Mailing List, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2020/03/msg00001.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20200204-0002/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.computer.org/csdl/proceedings-article/sp/2020/349700b594/1j2LgrHDR2oThird Party Advisory
Impacted products
Vendor Product Version
linux linux_kernel *
debian debian_linux 8.0
netapp a700s_firmware -
netapp a700s -
netapp 8300_firmware -
netapp 8300 -
netapp 8700_firmware -
netapp 8700 -
netapp a400_firmware -
netapp a400 -
netapp h610s_firmware -
netapp h610s -
netapp active_iq_unified_manager -
netapp cloud_backup -
netapp data_availability_services -
netapp e-series_santricity_os_controller *
netapp hci_management_node -
netapp solidfire -
netapp steelstore_cloud_integrated_storage -


To clipboard 

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  "cveTags": [],
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      "value": "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."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n flow_dissector en el kernel de Linux 4.3 a 5.x anterior a la versi\u00f3n 5.3.10 tiene una vulnerabilidad de seguimiento del dispositivo, tambi\u00e9n conocida como CID-55667441c84f. Esto ocurre porque la etiqueta de flujo autom\u00e1tico de un paquete UDP IPv6 se basa en un valor hashrnd de 32 bits como secreto y porque se usa jhash (en lugar de siphash). El valor hashrnd permanece igual a partir del tiempo de arranque, y puede ser inferido por un atacante. Esto afecta a net / core / flow_dissector.c y al c\u00f3digo relacionado."
    }
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  "id": "CVE-2019-18282",
  "lastModified": "2024-11-21T04:32:58.140",
  "metrics": {
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        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
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}


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