Vulnerability Monitor

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CVE-2019-18282

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.

Published

2020-01-16T16:15:16.950

Last Modified

2024-11-21T04:32:58.140

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:N/A:N

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: NONE
  • Availability Impact: NONE
Exploitability Score

10.0

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-330
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel ≤ 5.3.10 Yes
Operating System debian debian_linux 8.0 Yes
Operating System netapp a700s_firmware - Yes
Hardware netapp a700s - No
Operating System netapp 8300_firmware - Yes
Hardware netapp 8300 - No
Operating System netapp 8700_firmware - Yes
Hardware netapp 8700 - No
Operating System netapp a400_firmware - Yes
Hardware netapp a400 - No
Operating System netapp h610s_firmware - Yes
Hardware netapp h610s - No
Application netapp active_iq_unified_manager - Yes
Application netapp cloud_backup - Yes
Application netapp data_availability_services - Yes
Application netapp e-series_santricity_os_controller ≤ 11.70.1 Yes
Application netapp hci_management_node - Yes
Application netapp solidfire - Yes
Application netapp steelstore_cloud_integrated_storage - Yes
References