Your submission was sent successfully! Close

CVE-2017-18509

Published: 13 August 2019

An issue was discovered in net/ipv6/ip6mr.c in the Linux kernel before 4.11. By setting a specific socket option, an attacker can control a pointer in kernel land and cause an inet_csk_listen_stop general protection fault, or potentially execute arbitrary code under certain circumstances. The issue can be triggered as root (e.g., inside a default LXC container or with the CAP_NET_ADMIN capability) or after namespace unsharing. This occurs because sk_type and protocol are not checked in the appropriate part of the ip6_mroute_* functions. NOTE: this affects Linux distributions that use 4.9.x longterm kernels before 4.9.187.

From the Ubuntu security team

It was discovered that the IPv6 implementation in the Linux kernel did not properly validate socket options in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

Medium

CVSS 3 base score: 7.8

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.13.0-16.19)
disco Not vulnerable
(4.18.0-10.11)
precise Ignored
(was needed ESM criteria)
trusty Ignored
(was needed ESM criteria)
upstream
Released (4.11~rc1)
xenial
Released (4.4.0-165.193)
linux-aws
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1001.1)
disco Not vulnerable
(4.18.0-1002.3)
precise Does not exist

trusty Ignored
(was needed ESM criteria)
upstream
Released (4.11~rc1)
xenial
Released (4.4.0-1095.106)
linux-aws-hwe
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.11~rc1)
xenial Not vulnerable
(4.15.0-1030.31~16.04.1)
linux-azure
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1002.2)
disco Not vulnerable
(4.18.0-1003.3)
precise Does not exist

trusty Not vulnerable
(4.15.0-1023.24~14.04.1)
upstream
Released (4.11~rc1)
xenial Not vulnerable
(4.11.0-1009.9)
linux-azure-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1002.2)
disco Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.11~rc1)
xenial Not vulnerable
(4.11.0-1009.9)
linux-gcp
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1001.1)
disco Not vulnerable
(4.18.0-1002.3)
precise Does not exist

trusty Does not exist

upstream
Released (4.11~rc1)
xenial
Released (4.13.0-1002.5)
linux-gcp-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1001.1)
disco Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.11~rc1)
xenial Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1030.32)
disco Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.11~rc1)
xenial Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-1011.11~18.04.1)
disco Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.11~rc1)
xenial Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.18.0-13.14~18.04.1)
disco Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.11~rc1)
xenial
Released (4.13.0-26.29~16.04.2)
linux-hwe-edge
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(5.0.0-15.16~18.04.1)
disco Does not exist

precise Does not exist

trusty Does not exist

upstream
Released (4.11~rc1)
xenial
Released (4.13.0-26.29~16.04.2)
linux-kvm
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1002.2)
disco Not vulnerable
(4.18.0-1003.3)
precise Does not exist

trusty Does not exist

upstream
Released (4.11~rc1)
xenial
Released (4.4.0-1059.66)
linux-lts-trusty
Launchpad, Ubuntu, Debian
bionic Does not exist

disco Does not exist

precise Ignored
(was needed ESM criteria)
trusty Does not exist

upstream
Released (4.11~rc1)
xenial Does not exist

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

disco Does not exist

precise Does not exist

trusty Ignored
(was needed ESM criteria)
upstream
Released (4.11~rc1)
xenial Does not exist

linux-oem
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1002.3)
disco Not vulnerable
(4.15.0-1021.24)
precise Does not exist

trusty Does not exist

upstream
Released (4.11~rc1)
xenial Ignored
(was needs-triage now end-of-life)
linux-oracle
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.15.0-1007.9)
disco Not vulnerable
(4.15.0-1007.9)
precise Does not exist

trusty Does not exist

upstream
Released (4.11~rc1)
xenial Not vulnerable
(4.15.0-1007.9~16.04.1)
linux-raspi2
Launchpad, Ubuntu, Debian
bionic Not vulnerable
(4.13.0-1005.5)
disco Not vulnerable
(4.18.0-1005.7)
precise Does not exist

trusty Does not exist

upstream
Released (4.11~rc1)
xenial
Released (4.4.0-1123.132)
linux-snapdragon
Launchpad, Ubuntu, Debian
bionic
Released (4.15.0-1053.57)
disco Not vulnerable
(5.0.0-1010.10)
precise Does not exist

trusty Does not exist

upstream
Released (4.11~rc1)
xenial
Released (4.4.0-1127.135)