CVE-2019-18282

Advisory lineage Upstream: 0 Downstream: 7
Modified
Published: 16 Jan 2020, 15:22
Last modified:05 Aug 2024, 01:47

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
v3.1 (nvd)
EPSS Score
0.68% LOW
1% probability +0.17%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

16 Jan 2020, 15:22
Published
Vulnerability first disclosed
05 Aug 2024, 01:47
Last Modified
Vulnerability information updated

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 Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
  • v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:P/I:N/A:N

EPSS Trends

Current EPSS score: 0.68%• Percentile: 72%

Techniques & Countermeasures

  • CWE-330•Use of Insufficiently Random Values

    The product uses insufficiently random numbers or values in a security context that depends on unpredictable numbers.

Affected Systems

  • debian•debian_linux

    8.0

  • linux•linux_kernel

    ≥ 4.3, ≤ 5.3.10

  • netapp•8300_firmware

    na

  • netapp•8700_firmware

    na

  • netapp•a400_firmware

    na

  • netapp•a700s_firmware

    na

  • netapp•active_iq_unified_manager

    na

  • netapp•cloud_backup

    na

  • netapp•data_availability_services

    na

  • netapp•e-series_santricity_os_controller

    ≥ 11.0.0, ≤ 11.70.1

  • netapp•h610s_firmware

    na

  • netapp•hci_management_node

    na

  • netapp•solidfire

    na

  • netapp•steelstore_cloud_integrated_storage

    na

References (5)