CVE-2019-18282
Published: 16 January 2020
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.
Priority
Status
Package | Release | Status |
---|---|---|
linux-hwe-5.8 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
focal |
Not vulnerable
(5.8.0-23.24~20.04.1)
|
|
upstream |
Released
(5.4~rc6)
|
|
linux-gke-5.4 Launchpad, Ubuntu, Debian |
focal |
Does not exist
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
bionic |
Not vulnerable
(5.4.0-1025.25~18.04.1)
|
|
upstream |
Released
(5.4~rc6)
|
|
linux-gkeop-5.4 Launchpad, Ubuntu, Debian |
trusty |
Does not exist
|
xenial |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
bionic |
Not vulnerable
(5.4.0-1001.1)
|
|
upstream |
Released
(5.4~rc6)
|
|
linux Launchpad, Ubuntu, Debian |
focal |
Not vulnerable
(5.4.0-9.12)
|
bionic |
Released
(4.15.0-74.84)
|
|
disco |
Released
(5.0.0-38.41)
|
|
eoan |
Released
(5.3.0-24.26)
|
|
groovy |
Not vulnerable
(5.4.0-26.30)
|
|
trusty |
Ignored
(was needed ESM criteria)
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Released
(4.4.0-170.199)
|
|
Patches: Introduced by cb1ce2ef387b01686469487edd45994872d52d73 |
||
linux-dell300x Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1005.8)
|
upstream |
Released
(5.4~rc6)
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
linux-gkeop Launchpad, Ubuntu, Debian |
focal |
Not vulnerable
(5.4.0-1008.9)
|
upstream |
Released
(5.4~rc6)
|
|
bionic |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
linux-oem-5.10 Launchpad, Ubuntu, Debian |
focal |
Not vulnerable
(5.10.0-1008.9)
|
upstream |
Released
(5.4~rc6)
|
|
bionic |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
linux-aws Launchpad, Ubuntu, Debian |
trusty |
Released
(4.4.0-1059.63)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
bionic |
Released
(4.15.0-1057.59)
|
|
disco |
Ignored
(end of life, was pending)
|
|
eoan |
Released
(5.3.0-1008.9)
|
|
focal |
Not vulnerable
(5.4.0-1005.5)
|
|
groovy |
Not vulnerable
(5.4.0-1009.9)
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Released
(4.4.0-1099.110)
|
|
linux-hwe Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-26.28~18.04.1)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Released
(4.15.0-74.83~16.04.1)
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
bionic |
Ignored
(end of life, was needs-triage)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Ignored
(end of life, was needs-triage)
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
trusty |
Released
(4.4.0-170.199~14.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
linux-oem Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1066.76)
|
disco |
Ignored
(end of life)
|
|
eoan |
Released
(4.15.0-1066.76)
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Ignored
(end of standard support, was needs-triage)
|
|
linux-oem-5.6 Launchpad, Ubuntu, Debian |
groovy |
Does not exist
|
bionic |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Not vulnerable
(5.6.0-1007.7)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-aws-5.0 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1023.26~18.04.1)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-aws-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1016.17~18.04.1)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-aws-5.4 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.4.0-1018.18~18.04.1)
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Released
(4.15.0-1057.59~16.04.1)
|
|
linux-azure Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1028.30~18.04.1)
|
disco |
Ignored
(end of life, was pending)
|
|
eoan |
Released
(5.3.0-1008.9)
|
|
focal |
Not vulnerable
(5.4.0-1006.6)
|
|
groovy |
Not vulnerable
(5.4.0-1010.10)
|
|
trusty |
Released
(4.15.0-1066.71~14.04.1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Released
(4.15.0-1066.71)
|
|
linux-azure-4.15 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1082.92)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-azure-5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-1008.9~18.04.1)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-azure-5.4 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.4.0-1020.20~18.04.1)
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
bionic |
Ignored
(end of life, was needs-triage)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-gcp Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1028.29~18.04.1)
|
disco |
Ignored
(end of life, was pending)
|
|
eoan |
Released
(5.3.0-1009.10)
|
|
focal |
Not vulnerable
(5.4.0-1005.5)
|
|
groovy |
Not vulnerable
(5.4.0-1009.9)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Released
(4.15.0-1052.56)
|
|
linux-gcp-4.15 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1071.81)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-gcp-5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-1009.10~18.04.1)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-gcp-5.4 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.4.0-1019.19~18.04.2)
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
bionic |
Ignored
(end of life, was needs-triage)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-gke-4.15 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1050.53)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-gke-5.0 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1027.28~18.04.1)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-gke-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1011.12~18.04.1)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-hwe-5.4 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.4.0-37.41~18.04.1)
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-kvm Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1052.52)
|
disco |
Ignored
(end of life, was pending)
|
|
eoan |
Released
(5.3.0-1008.9)
|
|
focal |
Not vulnerable
(5.4.0-1004.4)
|
|
groovy |
Not vulnerable
(5.4.0-1009.9)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Released
(4.4.0-1063.70)
|
|
linux-oem-osp1 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1033.38)
|
disco |
Ignored
(end of life)
|
|
eoan |
Released
(5.0.0-1033.38)
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-oracle Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1031.34)
|
disco |
Ignored
(end of life, was pending)
|
|
eoan |
Released
(5.3.0-1007.8)
|
|
focal |
Not vulnerable
(5.4.0-1005.5)
|
|
groovy |
Not vulnerable
(5.4.0-1009.9)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Released
(4.15.0-1031.34~16.04.1)
|
|
linux-oracle-5.0 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1009.14~18.04.1)
|
disco |
Does not exist
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-oracle-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1011.12~18.04.1)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-oracle-5.4 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.4.0-1019.19~18.04.1)
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-raspi Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
eoan |
Does not exist
|
|
focal |
Not vulnerable
(5.4.0-1007.7)
|
|
groovy |
Not vulnerable
(5.4.0-1008.8)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-raspi-5.4 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.4.0-1013.13~18.04.1)
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1053.57)
|
disco |
Ignored
(end of life, was pending)
|
|
eoan |
Released
(5.3.0-1014.16)
|
|
focal |
Ignored
(end of life, was needed)
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Released
(4.4.0-1126.135)
|
|
linux-raspi2-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1017.19~18.04.1)
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-riscv Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
eoan |
Does not exist
|
|
focal |
Not vulnerable
(5.4.0-24.28)
|
|
groovy |
Not vulnerable
(5.4.0-24.28)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Does not exist
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1070.77)
|
disco |
Ignored
(end of life, was pending)
|
|
eoan |
Does not exist
|
|
focal |
Does not exist
|
|
groovy |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(5.4~rc6)
|
|
xenial |
Released
(4.4.0-1130.138)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 5.3 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | Low |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |