CVE-2018-1108

Published: 21 May 2018

kernel drivers before version 4.17-rc1 are vulnerable to a weakness in the Linux kernel's implementation of random seed data. Programs, early in the boot sequence, could use the data allocated for the seed before it was sufficiently generated.

From the Ubuntu security team

Jann Horn discovered that the Linux kernel's implementation of random seed data reported that it was in a ready state before it had gathered sufficient entropy. An attacker could use this to expose sensitive information.

Priority

Medium

CVSS 3 base score: 5.9

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-33.36)
Patches:
Introduced by e192be9d9a30555aae2ca1dc3aad37cba484cd4a
Fixed by 43838a23a05fbd13e47d750d3dfd77001536dd33
Introduced by ee7998c50c2697737c6530431709f77c852bf0d6
Fixed by dc12baacb95f205948f64dc936a47d89ee110117
Introduced by 1e7f583af67be4ff091d0aeb863c649efd7a9112
Fixed by 8ef35c866f8862df074a49a93b0309725812dea8
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1020.20)
linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1022.23)
linux-azure-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.18.0-1003.3~18.04.1)
linux-euclid
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1018.19)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable

linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.18.0-11.12~18.04.1)
linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1020.20)
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1017.20)
linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1021.23)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.17~rc2)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable