CVE-2019-11815

Published: 08 May 2019

An issue was discovered in rds_tcp_kill_sock in net/rds/tcp.c in the Linux kernel before 5.0.8. There is a race condition leading to a use-after-free, related to net namespace cleanup.

From the Ubuntu security team

It was discovered that a race condition leading to a use-after-free existed in the Reliable Datagram Sockets (RDS) protocol implementation in the Linux kernel. The RDS protocol is blacklisted by default in Ubuntu. If enabled, 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: 8.1

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-55.60)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-150.176)
Ubuntu 14.04 ESM (Trusty Tahr) Not vulnerable
(3.11.0-12.19)
Patches:
Introduced by 467fa15356acfb7b2efa38839c3e76caa4e6e0ea
Fixed by cb66ddd156203daefb8d71158036b27b0e2caf63
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1047.49)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1084.94)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (4.4.0-1045.48)
linux-aws-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1047.49~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.18.0-1025.27~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1051.56)
Ubuntu 14.04 ESM (Trusty Tahr) Ignored
(was needed ESM criteria)
linux-azure-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.18.0-1025.27~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1051.56)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-euclid
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(was needs-triage now end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(abandoned)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1037.39)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1037.39~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gcp-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1037.39)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke-4.15
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1037.39)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke-5.0
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(5.0.0-1011.11~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.0.0-23.24~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-55.60~16.04.2)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (5.0.0-16.17~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-55.60~16.04.2)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1039.39)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1047.53)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr)
Released (4.4.0-150.176~14.04.1)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(abandoned)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Does not exist

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1050.57)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(was needs-triage now end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-oracle
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1018.20)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1018.20~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1041.44)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1110.118)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (5.1~rc4)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1058.64)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1114.119)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist