CVE-2019-18282

Aliases:UBUNTU-CVE-2019-18282DEBIAN-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
22/100
CVSS Score
5.3 MEDIUM
v3.1 (nvd)
EPSS Score
2.6% LOW
3% probability +2.10%
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: 2.60%• Percentile: 85%

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•linux

    < 5.3.15-1 | < 5.3.15-1 | < 5.3.15-1 | < 5.3.15-1

  • ubuntu•linux

    < 4.4.0-170.199 | < 4.15.0-74.84

  • ubuntu•linux-aws

    < 4.4.0-1059.63 | < 4.4.0-1099.110 | < 4.15.0-1057.59

  • ubuntu•linux-aws-5.0

    < 5.0.0-1023.26~18.04.1

  • ubuntu•linux-aws-fips

    < 4.15.0-2018.18 | all

  • ubuntu•linux-aws-hwe

    < 4.15.0-1057.59~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1066.71~14.04.1 | < 4.15.0-1066.71 | < 5.0.0-1028.30~18.04.1

  • ubuntu•linux-azure-5.3

    < 5.3.0-1008.9~18.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2006.7 | all

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-fips

    < 4.4.0-1026.31 | all

  • ubuntu•linux-gcp

    < 4.15.0-1052.56 | < 5.0.0-1028.29~18.04.1

  • ubuntu•linux-gcp-5.3

    < 5.3.0-1009.10~18.04.1

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gcp-fips

    all

  • ubuntu•linux-gke

    all

  • ubuntu•linux-gke-4.15

    < 4.15.0-1050.53

  • ubuntu•linux-gke-5.0

    < 5.0.0-1027.28~18.04.1

  • ubuntu•linux-hwe

    < 4.15.0-74.83~16.04.1 | < 5.3.0-26.28~18.04.1

  • ubuntu•linux-hwe-edge

    all | < 5.3.0-24.26~18.04.2

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1063.70 | < 4.15.0-1052.52

  • ubuntu•linux-lts-xenial

    < 4.4.0-170.199~14.04.1

  • ubuntu•linux-oem

    < 4.15.0-1066.76

  • ubuntu•linux-oem-osp1

    < 5.0.0-1033.38

  • ubuntu•linux-oracle

    < 4.15.0-1031.34~16.04.1 | < 4.15.0-1031.34

  • ubuntu•linux-oracle-5.0

    < 5.0.0-1009.14~18.04.1

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.4.0-1126.135 | < 4.15.0-1053.57 | all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all

  • ubuntu•linux-snapdragon

    < 4.4.0-1130.138 | < 4.15.0-1070.77

  • 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 (8)