SorteKanin@feddit.dk to Programming@programming.dev · 17 hours agoLinux Kernel TCP Flaw With 9.8 CVSS Score Affects Ubuntu, Red Hat and Other Distributionsthehackernews.comexternal-linkmessage-square16fedilinkarrow-up183cross-posted to: linux@lemmy.mllinux@programming.devprogramming@programming.devcybersecurity@infosec.pub
arrow-up183external-linkLinux Kernel TCP Flaw With 9.8 CVSS Score Affects Ubuntu, Red Hat and Other Distributionsthehackernews.comSorteKanin@feddit.dk to Programming@programming.dev · 17 hours agomessage-square16fedilinkcross-posted to: linux@lemmy.mllinux@programming.devprogramming@programming.devcybersecurity@infosec.pub
minus-squareRimu@piefed.sociallinkfedilinkEnglisharrow-up31·edit-217 hours agoYou can disable multipath TCP by issuing this command sudo sysctl -w net.mptcp.enabled=0 persist across reboots with echo "net.mptcp.enabled=0" | sudo tee /etc/sysctl.d/99-mptcp.conf If your kernel is older than 5.6 then there is no multipath TCP to disable. e.g. Ubuntu 20.04 should be fine.
minus-squareImgurRefugee114@reddthat.comlinkfedilinkarrow-up29·17 hours agoNote: It’s unclear whether this is an adequate mitigation.
You can disable multipath TCP by issuing this command
sudo sysctl -w net.mptcp.enabled=0persist across reboots with
echo "net.mptcp.enabled=0" | sudo tee /etc/sysctl.d/99-mptcp.confIf your kernel is older than 5.6 then there is no multipath TCP to disable. e.g. Ubuntu 20.04 should be fine.
Note: It’s unclear whether this is an adequate mitigation.