net/netfilter/nfnetlink_cthelper.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for new, get, and del operations,...

原文の説明

取得元が公開している説明をそのまま載せています (多くは英語)。

net/netfilter/nfnetlink_cthelper.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for new, get, and del operations, which allows local users to bypass intended access restrictions because the nfnl_cthelper_list data structure is shared across all net namespaces.

出典: OSV.dev (Open Source Vulnerabilities) OSV

影響パッケージ

Ubuntu:14.04:LTS linux

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.13.0-144.193"}]}]

Ubuntu:14.04:LTS linux-aws

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-1016.16"}]}]

Ubuntu:14.04:LTS linux-lts-xenial

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-119.143~14.04.1"}]}]

Ubuntu:16.04:LTS linux

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-119.143"}]}]

Ubuntu:16.04:LTS linux-aws

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-1054.63"}]}]

Ubuntu:16.04:LTS linux-azure

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.13.0-1014.17"}]}]

Ubuntu:16.04:LTS linux-gcp

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.13.0-1012.16"}]}]

Ubuntu:16.04:LTS linux-hwe

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.13.0-41.46~16.04.1"}]}]

Ubuntu:16.04:LTS linux-kvm

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-1020.25"}]}]

Ubuntu:16.04:LTS linux-oem

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.13.0-1022.24"}]}]

Ubuntu:16.04:LTS linux-raspi2

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-1086.94"}]}]

Ubuntu:16.04:LTS linux-snapdragon

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-1088.93"}]}]

Ubuntu:Pro:FIPS-updates:16.04:LTS linux-fips

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.4.0-1008.10"}]}]

Ubuntu:20.04:LTS linux-azure-fde