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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
mitreCNA
---
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 60%
VendorProductVersion
linuxlinux_kernel
4.3 ≤
𝑥
≤ 5.3.10
debiandebian_linux
8.0
netappa700s_firmware
-
netapp8300_firmware
-
netapp8700_firmware
-
netappa400_firmware
-
netapph610s_firmware
-
netappactive_iq_unified_manager
-
netappcloud_backup
-
netappdata_availability_services
-
netappe-series_santricity_os_controller
11.0.0 ≤
𝑥
≤ 11.70.1
netapphci_management_node
-
netappsolidfire
-
netappsteelstore_cloud_integrated_storage
-
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bullseye
5.10.223-1
fixed
jessie
not-affected
bullseye (security)
5.10.226-1
fixed
bookworm
6.1.106-3
fixed
bookworm (security)
6.1.112-1
fixed
trixie
6.11.5-1
fixed
sid
6.11.6-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
linux
groovy
not-affected
focal
not-affected
eoan
Fixed 5.3.0-24.26
released
disco
Fixed 5.0.0-38.41
released
bionic
Fixed 4.15.0-74.84
released
xenial
Fixed 4.4.0-170.199
released
trusty
ignored
linux-aws
groovy
not-affected
focal
not-affected
eoan
Fixed 5.3.0-1008.9
released
disco
ignored
bionic
Fixed 4.15.0-1057.59
released
xenial
Fixed 4.4.0-1099.110
released
trusty
Fixed 4.4.0-1059.63
released
linux-aws-5.0
groovy
dne
focal
dne
eoan
dne
disco
dne
bionic
Fixed 5.0.0-1023.26~18.04.1
released
xenial
dne
trusty
dne
linux-aws-5.3
groovy
dne
focal
dne
eoan
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-aws-5.4
groovy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-aws-hwe
groovy
dne
focal
dne
eoan
dne
disco
dne
bionic
dne
xenial
Fixed 4.15.0-1057.59~16.04.1
released
trusty
dne
linux-azure
groovy
not-affected
focal
not-affected
eoan
Fixed 5.3.0-1008.9
released
disco
ignored
bionic
Fixed 5.0.0-1028.30~18.04.1
released
xenial
Fixed 4.15.0-1066.71
released
trusty
Fixed 4.15.0-1066.71~14.04.1
released
linux-azure-4.15
groovy
dne
focal
dne
eoan
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-azure-5.3
groovy
dne
focal
dne
eoan
dne
disco
dne
bionic
Fixed 5.3.0-1008.9~18.04.1
released
xenial
dne
trusty
dne
linux-azure-5.4
groovy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-azure-edge
groovy
dne
focal
dne
eoan
dne
disco
dne
bionic
ignored
xenial
dne
trusty
dne
linux-dell300x
groovy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-gcp
groovy
not-affected
focal
not-affected
eoan
Fixed 5.3.0-1009.10
released
disco
ignored
bionic
Fixed 5.0.0-1028.29~18.04.1
released
xenial
Fixed 4.15.0-1052.56
released
trusty
dne
linux-gcp-4.15
groovy
dne
focal
dne
eoan
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-gcp-5.3
groovy
dne
focal
dne
eoan
dne
disco
dne
bionic
Fixed 5.3.0-1009.10~18.04.1
released
xenial
dne
trusty
dne
linux-gcp-5.4
groovy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-gcp-edge
groovy
dne
focal
dne
eoan
dne
disco
dne
bionic
ignored
xenial
dne
trusty
dne
linux-gke-4.15
groovy
dne
focal
dne
eoan
dne
disco
dne
bionic
Fixed 4.15.0-1050.53
released
xenial
dne
trusty
dne
linux-gke-5.0
groovy
dne
focal
dne
eoan
dne
disco
dne
bionic
Fixed 5.0.0-1027.28~18.04.1
released
xenial
dne
trusty
dne
linux-gke-5.3
groovy
dne
focal
dne
eoan
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-gke-5.4
groovy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-gkeop
groovy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-gkeop-5.4
groovy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-hwe
groovy
dne
focal
dne
eoan
dne
disco
dne
bionic
Fixed 5.3.0-26.28~18.04.1
released
xenial
Fixed 4.15.0-74.83~16.04.1
released
trusty
dne
linux-hwe-5.4
groovy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-hwe-5.8
groovy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-hwe-edge
groovy
dne
focal
dne
eoan
dne
disco
dne
bionic
ignored
xenial
ignored
trusty
dne
linux-kvm
groovy
not-affected
focal
not-affected
eoan
Fixed 5.3.0-1008.9
released
disco
ignored
bionic
Fixed 4.15.0-1052.52
released
xenial
Fixed 4.4.0-1063.70
released
trusty
dne
linux-lts-trusty
groovy
dne
focal
dne
eoan
dne
disco
dne
bionic
dne
xenial
dne
trusty
dne
linux-lts-xenial
groovy
dne
focal
dne
eoan
dne
disco
dne
bionic
dne
xenial
dne
trusty
Fixed 4.4.0-170.199~14.04.1
released
linux-oem
groovy
dne
focal
dne
eoan
Fixed 4.15.0-1066.76
released
disco
ignored
bionic
Fixed 4.15.0-1066.76
released
xenial
ignored
trusty
dne
linux-oem-5.10
groovy
dne
focal
not-affected
bionic
dne
xenial
dne
trusty
dne
linux-oem-5.6
groovy
dne
focal
not-affected
eoan
dne
bionic
dne
xenial
dne
trusty
dne
linux-oem-osp1
groovy
dne
focal
dne
eoan
Fixed 5.0.0-1033.38
released
disco
ignored
bionic
Fixed 5.0.0-1033.38
released
xenial
dne
trusty
dne
linux-oracle
groovy
not-affected
focal
not-affected
eoan
Fixed 5.3.0-1007.8
released
disco
ignored
bionic
Fixed 4.15.0-1031.34
released
xenial
Fixed 4.15.0-1031.34~16.04.1
released
trusty
dne
linux-oracle-5.0
groovy
dne
focal
dne
eoan
dne
disco
dne
bionic
Fixed 5.0.0-1009.14~18.04.1
released
xenial
dne
trusty
dne
linux-oracle-5.3
groovy
dne
focal
dne
eoan
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-oracle-5.4
groovy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-raspi
groovy
not-affected
focal
not-affected
eoan
dne
bionic
dne
xenial
dne
trusty
dne
linux-raspi-5.4
groovy
dne
focal
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-raspi2
groovy
dne
focal
ignored
eoan
Fixed 5.3.0-1014.16
released
disco
ignored
bionic
Fixed 4.15.0-1053.57
released
xenial
Fixed 4.4.0-1126.135
released
trusty
dne
linux-raspi2-5.3
groovy
dne
focal
dne
eoan
dne
bionic
not-affected
xenial
dne
trusty
dne
linux-riscv
groovy
not-affected
focal
not-affected
eoan
dne
bionic
dne
xenial
dne
trusty
dne
linux-snapdragon
groovy
dne
focal
dne
eoan
dne
disco
ignored
bionic
Fixed 4.15.0-1070.77
released
xenial
Fixed 4.4.0-1130.138
released
trusty
dne
Common Weakness Enumeration
References
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.10
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=55667441c84fa5e0911a0aac44fb059c15ba6da2
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
https://security.netapp.com/advisory/ntap-20200204-0002/
https://www.computer.org/csdl/proceedings-article/sp/2020/349700b594/1j2LgrHDR2o
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.10
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=55667441c84fa5e0911a0aac44fb059c15ba6da2
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
https://security.netapp.com/advisory/ntap-20200204-0002/
https://www.computer.org/csdl/proceedings-article/sp/2020/349700b594/1j2LgrHDR2o