Your submission was sent successfully! Close

You have successfully unsubscribed! Close

Thank you for signing up for our newsletter!
In these regular emails you will find the latest updates about Ubuntu and upcoming events where you can meet our team.Close

CVE-2017-5972

Published: 14 February 2017

The TCP stack in the Linux kernel 3.x does not properly implement a SYN cookie protection mechanism for the case of a fast network connection, which allows remote attackers to cause a denial of service (CPU consumption) by sending many TCP SYN packets, as demonstrated by an attack against the kernel-3.10.0 package in CentOS Linux 7. NOTE: third parties have been unable to discern any relationship between the GitHub Engineering finding and the Trigemini.c attack code.

Notes

AuthorNote
sbeattie
probably addressed by Eric Dumazet's "lockless listener" series
(final git commit in series listed in references)

Priority

Low

Cvss 3 Severity Score

7.5

Score breakdown

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.13.0-16.19)
artful Not vulnerable
(4.10.0-19.21)
cosmic Not vulnerable
(4.15.0-20.21)
disco Not vulnerable
(4.18.0-10.11)
precise Ignored
(end of life)
trusty Ignored
(was needed ESM criteria)
upstream
Released (4.4~rc1)
xenial Not vulnerable
(4.4.0-2.16)
yakkety Not vulnerable
(4.4.0-21.37)
zesty Not vulnerable
(4.8.0-22.24)
Patches:
Introduced by

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2

Fixed by e994b2f0fb9229aeff5eea9541320bd7b2ca8714
linux-armadaxp
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (4.4~rc1)
artful Does not exist

cosmic Not vulnerable
(4.15.0-1007.7)
disco Not vulnerable
(4.18.0-1002.3)
precise Does not exist

trusty Not vulnerable
(4.4.0-1002.2)
xenial Not vulnerable
(4.4.0-1001.10)
yakkety Does not exist

zesty Does not exist

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

upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Ignored
(abandoned)
yakkety Ignored
(end of life)
zesty Does not exist

linux-gke
Launchpad, Ubuntu, Debian
bionic Not vulnerable

upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Does not exist

xenial Not vulnerable
(4.4.0-1003.3)
yakkety Does not exist

zesty Does not exist

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

upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Ignored
(abandoned)
yakkety Ignored
(end of life)
zesty Ignored
(end of life)
linux-grouper
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.18.0-13.14~18.04.1)
upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Does not exist

xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

zesty Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-13.14~18.04.2)
upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Does not exist

xenial Not vulnerable
(4.8.0-36.36~16.04.1)
yakkety Does not exist

zesty Does not exist

linux-linaro-omap
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Ignored
(end of life)
trusty Does not exist

xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Ignored
(end of life, was ignored)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Ignored
(end of life, was needed)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Ignored
(end of life, was ignored)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

artful Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Not vulnerable
(4.4.0-13.29~14.04.1)
upstream
Released (4.4~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

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

upstream
Released (4.4~rc1)
cosmic Does not exist

disco Does not exist

trusty Does not exist

xenial Not vulnerable
(4.15.0-1030.31~16.04.1)
linux-azure
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1002.2)
upstream
Released (4.4~rc1)
artful Does not exist

cosmic Not vulnerable
(4.15.0-1009.9)
disco Not vulnerable
(4.18.0-1003.3)
trusty Not vulnerable
(4.15.0-1023.24~14.04.1)
xenial Not vulnerable
(4.11.0-1009.9)
yakkety Does not exist

zesty Does not exist

linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1002.2)
upstream
Released (4.4~rc1)
cosmic Does not exist

disco Does not exist

trusty Does not exist

xenial Not vulnerable
(4.11.0-1009.9)
linux-euclid
Launchpad, Ubuntu, Debian
bionic Does not exist

upstream
Released (4.4~rc1)
artful Does not exist

cosmic Does not exist

disco Does not exist

trusty Does not exist

xenial Not vulnerable
(4.4.0-9019.20)
zesty Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1001.1)
upstream
Released (4.4~rc1)
artful Does not exist

cosmic Not vulnerable
(4.15.0-1006.6)
disco Not vulnerable
(4.18.0-1002.3)
trusty Does not exist

xenial Not vulnerable
(4.10.0-1004.4)
yakkety Does not exist

zesty Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.18.0-1004.5~18.04.1)
upstream
Released (4.4~rc1)
cosmic Does not exist

disco Does not exist

trusty Does not exist

xenial Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1002.2)
artful Does not exist

cosmic Not vulnerable
(4.15.0-1008.8)
disco Not vulnerable
(4.18.0-1003.3)
trusty Does not exist

upstream
Released (4.4~rc1)
xenial Not vulnerable
(4.4.0-1004.9)
zesty Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (4.4~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-mako
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (4.4~rc1)
xenial Ignored
(abandoned)
yakkety Ignored
(end of life)
zesty Does not exist

linux-manta
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (4.4~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-oem
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Not vulnerable
(4.15.0-1002.3)
cosmic Not vulnerable
(4.15.0-1004.5)
disco Not vulnerable
(4.15.0-1021.24)
trusty Does not exist

upstream
Released (4.4~rc1)
xenial Not vulnerable
(4.13.0-1008.9)
zesty Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1007.9)
cosmic Not vulnerable
(4.15.0-1007.9)
disco Not vulnerable
(4.15.0-1007.9)
trusty Does not exist

upstream
Released (4.4~rc1)
xenial Not vulnerable
(4.15.0-1007.9~16.04.1)
linux-qcm-msm
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Ignored
(end of life)
trusty Does not exist

upstream
Released (4.4~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.10.0-1004.6)
bionic Not vulnerable
(4.13.0-1005.5)
cosmic Not vulnerable
(4.15.0-1010.11)
disco Not vulnerable
(4.18.0-1005.7)
precise Does not exist

trusty Does not exist

upstream
Released (4.4~rc1)
xenial Not vulnerable
(4.4.0-1003.4)
yakkety Not vulnerable
(4.4.0-1009.10)
zesty Not vulnerable
(4.8.0-1013.15)
linux-snapdragon
Launchpad, Ubuntu, Debian
artful Not vulnerable
(4.4.0-1050.54)
bionic Not vulnerable
(4.4.0-1077.82)
cosmic Does not exist

disco Not vulnerable
(5.0.0-1010.10)
precise Does not exist

trusty Does not exist

upstream
Released (4.4~rc1)
xenial Not vulnerable
(4.4.0-1012.12)
yakkety Not vulnerable
(4.4.0-1012.12)
zesty Not vulnerable
(4.4.0-1029.32)
linux-ti-omap4
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Does not exist

cosmic Does not exist

disco Does not exist

precise Ignored
(end of life)
trusty Does not exist

upstream
Released (4.4~rc1)
xenial Does not exist

yakkety Does not exist

zesty Does not exist

Severity score breakdown

Parameter Value
Base score 7.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H