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CVE-2022-1012

Published: 12 May 2022

A memory leak problem was found in the TCP source port generation algorithm in net/ipv4/tcp.c due to the small table perturb size. This flaw may allow an attacker to information leak and may cause a denial of service problem.

From the Ubuntu security team

Moshe Kol, Amit Klein and Yossi Gilad discovered that the IP implementation in the Linux kernel did not provide sufficient randomization when calculating port offsets. An attacker could possibly use this to expose sensitive information.

Priority

Medium

CVSS 3 base score: 8.2

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-194.205)
focal
Released (5.4.0-126.142)
impish Ignored
(reached end-of-life)
jammy
Released (5.15.0-47.51)
trusty Ignored
(was needed ESM criteria)
upstream
Released (5.18~rc6)
xenial Ignored
(was needed ESM criteria)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by b2d057560b8107c633b39aabe517ff9d93f285e3
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by 9e9b70ae923baf2b5e8a0ea4fd0c8451801ac526
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by 4dfa9b438ee34caca4e6a4e5e961641807367f6f
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by ca7af0402550f9a0b3316d5f1c30904e42ed257d
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by e9261476184be1abd486c9434164b2acbe0ed6c2
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by 4c2c8f03a5ab7cb04ec64724d7d176d00bcc91e5
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by e8161345ddbb66e449abde10d2fdce93f867eba9
linux-aws
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-1142.154)
focal
Released (5.4.0-1085.92)
impish Ignored
(reached end-of-life)
jammy
Released (5.15.0-1019.23)
trusty Ignored
(was needed ESM criteria)
upstream
Released (5.18~rc6)
xenial Ignored
(was needed ESM criteria)
linux-aws-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-aws-5.3)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-aws-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-aws-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needed now end-of-life)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-aws-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-1019.23~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-aws-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-aws-5.4)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-aws-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1085.92~18.04.1)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-aws-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-aws-5.11)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Ignored
(was needed ESM criteria)
linux-azure
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.3)
focal
Released (5.4.0-1091.96)
impish Ignored
(reached end-of-life)
jammy
Released (5.15.0-1019.24)
trusty Pending
(4.15.0-1152.167~14.04.1)
upstream
Released (5.18~rc6)
xenial Pending
(4.15.0-1152.167~16.04.1)
linux-azure-4.15
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-1152.167)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-azure-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-azure-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needed now end-of-life)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-azure-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-1019.24~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-azure-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.4)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-azure-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1091.96~18.04.1)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-azure-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-azure-5.11)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-azure-5.3)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-azure-fde
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.4.0-1091.96+cvm1.1)
impish Does not exist

jammy
Released (5.15.0-1019.24)
trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-bluefield
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.4.0-1046.51)
impish Does not exist

jammy Not vulnerable
(5.15.0-1008.10)
trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-dell300x
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-1054.59)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-fips
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Ignored
(was needed ESM criteria)
linux-gcp
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gcp-5.3)
focal
Released (5.4.0-1089.97)
impish Ignored
(reached end-of-life)
jammy
Released (5.15.0-1017.23)
trusty Does not exist

upstream
Released (5.18~rc6)
xenial Ignored
(was needed ESM criteria)
linux-gcp-4.15
Launchpad, Ubuntu, Debian
bionic Needed

focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-gcp-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-gcp-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needed now end-of-life)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-gcp-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-1017.23~20.04.2)
jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-gcp-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gcp-5.4)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-gcp-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1089.97~18.04.1)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-gcp-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-gcp-5.11)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-gke
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.4.0-1083.89)
impish Does not exist

jammy
Released (5.15.0-1015.18)
trusty Does not exist

upstream
Released (5.18~rc6)
xenial Ignored
(reached end of standard support)
linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gke-5.3)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-gke-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-1015.18~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-gke-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-gke-5.4)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-gke-5.4
Launchpad, Ubuntu, Debian
bionic Ignored
(was needed now end-of-life)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-gkeop
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.4.0-1053.56)
impish Does not exist

jammy
Released (5.15.0-1002.4)
trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-gkeop-5.4
Launchpad, Ubuntu, Debian
bionic Ignored
(was needed now end-of-life)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic Ignored
(replaced by linux-hwe-5.4)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Pending
(4.15.0-194.205~16.04.1)
linux-hwe-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-hwe-5.13)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-hwe-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needed now end-of-life)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-hwe-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-48.54~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-hwe-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-126.142~18.04.1)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-hwe-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-hwe-5.11)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-hwe-5.4)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Ignored
(superseded by linux-hwe)
linux-ibm
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.4.0-1033.37)
impish Does not exist

jammy
Released (5.15.0-1013.15)
trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-ibm-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1033.37~18.04.1)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-intel-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needed now end-of-life)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-intel-iotg
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish Does not exist

jammy Pending
(5.15.0-1013.17)
trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-intel-iotg-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Pending
(5.15.0-1015.20~20.04.2)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-1128.133)
focal
Released (5.4.0-1075.80)
impish Ignored
(reached end-of-life)
jammy
Released (5.15.0-1017.21)
trusty Does not exist

upstream
Released (5.18~rc6)
xenial Ignored
(was needed ESM criteria)
linux-lowlatency
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish Does not exist

jammy
Released (5.15.0-47.53)
trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-lowlatency-hwe-5.15
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.15.0-48.54~20.04.1)
jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish Does not exist

jammy Does not exist

trusty Ignored
(was needed ESM criteria)
upstream
Released (5.18~rc6)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Ignored
(superseded by linux-hwe)
linux-oem-5.10
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-oem-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-oem-5.14
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.14.0-1044.49)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-oem-5.17
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Does not exist

impish Does not exist

jammy
Released (5.17.0-1011.12)
trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-oem-5.6
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-oem-osp1
Launchpad, Ubuntu, Debian
bionic Ignored
(was needs-triage now end-of-life)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-1107.118)
focal
Released (5.4.0-1083.91)
impish Ignored
(reached end-of-life)
jammy
Released (5.15.0-1017.22)
trusty Does not exist

upstream
Released (5.18~rc6)
xenial Pending
(4.15.0-1107.118~16.04.1)
linux-oracle-5.0
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-oracle-5.3)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-oracle-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-oracle-5.13
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needed now end-of-life)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-oracle-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-oracle-5.4)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-oracle-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1083.91~18.04.1)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-oracle-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-oracle-5.11)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-raspi
Launchpad, Ubuntu, Debian
bionic Does not exist

focal
Released (5.4.0-1070.80)
impish Ignored
(reached end-of-life)
jammy
Released (5.15.0-1014.16)
trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-raspi-5.4
Launchpad, Ubuntu, Debian
bionic
Released (5.4.0-1070.80~18.04.1)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-1120.128)
focal Ignored
(replaced by linux-raspi)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Ignored
(end of standard support)
linux-raspi2-5.3
Launchpad, Ubuntu, Debian
bionic Ignored
(superseded by linux-raspi-5.4)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-riscv
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-riscv-5.8)
impish Ignored
(reached end-of-life)
jammy Pending
(5.15.0-1018.21)
trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-riscv-5.11
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(was needs-triage now end-of-life)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-riscv-5.8
Launchpad, Ubuntu, Debian
bionic Does not exist

focal Ignored
(superseded by linux-riscv-5.11)
impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
bionic Pending
(4.15.0-1138.148)
focal Does not exist

impish Does not exist

jammy Does not exist

trusty Does not exist

upstream
Released (5.18~rc6)
xenial Ignored
(end of standard support)