CVE-2021-3773

Published: 16 February 2022

A flaw in netfilter could allow a network-connected attacker to infer openvpn connection endpoint information for further use in traditional network attacks.

Priority

CVSS 3 base score: 9.8

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	hirsute	Ignored (reached end-of-life)
	impish	Needs triage
	jammy	Needs triage
	trusty	Ignored (was needs-triage ESM criteria)
	upstream	Needs triage
	xenial	Ignored (was needs-triage ESM criteria)
linux-aws Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	hirsute	Ignored (reached end-of-life)
	impish	Needs triage
	jammy	Needs triage
	trusty	Ignored (was needs-triage ESM criteria)
	upstream	Needs triage
	xenial	Ignored (was needs-triage ESM criteria)
linux-aws-5.0 Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-aws-5.3)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-aws-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-aws-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-aws-5.3 Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-aws-5.4)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-aws-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-aws-5.8 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-aws-hwe 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	Needs triage
	xenial	Ignored (was needs-triage ESM criteria)
linux-azure Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-azure-5.3)
	focal	Needs triage
	hirsute	Ignored (reached end-of-life)
	impish	Needs triage
	jammy	Needs triage
	trusty	Ignored (was needs-triage ESM criteria)
	upstream	Needs triage
	xenial	Ignored (was needs-triage ESM criteria)
linux-azure-4.15 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-azure-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-azure-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-azure-5.3 Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-azure-5.4)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-azure-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-azure-5.8 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-azure-edge Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-azure-5.3)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-azure-fde Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-bluefield Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-dell300x Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gcp Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-gcp-5.3)
	focal	Needs triage
	hirsute	Ignored (reached end-of-life)
	impish	Needs triage
	jammy	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Ignored (was needs-triage ESM criteria)
linux-gcp-4.15 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gcp-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gcp-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gcp-5.3 Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-gcp-5.4)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gcp-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gcp-5.8 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gcp-edge Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-gcp-5.3)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gke Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	hirsute	Does not exist
	impish	Does not exist
	jammy	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	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
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gke-5.0 Launchpad, Ubuntu, Debian	bionic	Ignored (was needs-triage now end-of-life)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gke-5.3 Launchpad, Ubuntu, Debian	bionic	Ignored (was needs-triage now end-of-life)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gke-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gkeop Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-gkeop-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-hwe Launchpad, Ubuntu, Debian	bionic	Ignored (replaced by linux-hwe-5.4)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Ignored (was needs-triage ESM criteria)
linux-hwe-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-hwe-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-hwe-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-hwe-5.8 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-hwe-edge Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-hwe-5.4)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Ignored (superseded by linux-hwe)
linux-ibm Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	hirsute	Does not exist
	impish	Does not exist
	jammy	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-ibm-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-intel-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-kvm Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	hirsute	Ignored (reached end-of-life)
	impish	Needs triage
	jammy	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Ignored (was needs-triage ESM criteria)
linux-lowlatency Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	impish	Does not exist
	jammy	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Ignored (was needs-triage ESM criteria)
	upstream	Needs triage
	xenial	Does not exist
linux-oem Launchpad, Ubuntu, Debian	bionic	Ignored (was needs-triage now end-of-life)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	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)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oem-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oem-5.14 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oem-5.17 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Does not exist
	impish	Does not exist
	jammy	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oem-5.6 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oem-osp1 Launchpad, Ubuntu, Debian	bionic	Ignored (was needs-triage now end-of-life)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oracle Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	hirsute	Ignored (reached end-of-life)
	impish	Needs triage
	jammy	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Ignored (was needs-triage ESM criteria)
linux-oracle-5.0 Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-oracle-5.3)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oracle-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oracle-5.13 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oracle-5.3 Launchpad, Ubuntu, Debian	bionic	Ignored (superseded by linux-oracle-5.4)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oracle-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-oracle-5.8 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-raspi Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Needs triage
	hirsute	Ignored (reached end-of-life)
	impish	Needs triage
	jammy	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-raspi-5.4 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-raspi2 Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Ignored (replaced by linux-raspi)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Ignored (was needs-triage now end-of-life)
linux-raspi2-5.3 Launchpad, Ubuntu, Debian	bionic	Ignored (was needs-triage now end-of-life)
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-riscv Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (superseded by linux-riscv-5.8)
	hirsute	Ignored (reached end-of-life)
	impish	Needs triage
	jammy	Needs triage
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-riscv-5.11 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-riscv-5.8 Launchpad, Ubuntu, Debian	bionic	Does not exist
	focal	Ignored (was needs-triage now end-of-life)
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Does not exist
linux-snapdragon Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Does not exist
	hirsute	Does not exist
	impish	Does not exist
	jammy	Does not exist
	trusty	Does not exist
	upstream	Needs triage
	xenial	Ignored (was needs-triage now end-of-life)

Notes

Author	Note
sbeattie	no identified fix in the upstream kernel as of 2022-01-27

References

Bugs

https://bugzilla.redhat.com/show_bug.cgi?id=2004949

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