Your submission was sent successfully! Close

CVE-2018-15594

Published: 20 August 2018

arch/x86/kernel/paravirt.c in the Linux kernel before 4.18.1 mishandles certain indirect calls, which makes it easier for attackers to conduct Spectre-v2 attacks against paravirtual guests.

From the Ubuntu security team

It was discovered that the paravirtualization implementation in the Linux kernel did not properly handle some indirect calls, reducing the effectiveness of Spectre v2 mitigations for paravirtual guests. A local attacker could use this to expose sensitive information.

Priority

High

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-36.39)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-137.163)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (3.13.0-160.210)
Patches:
Introduced by 3010a0663fd949d122eca0561b06b0a9453f7866
Fixed by 5800dc5c19f34e6e03b5adab1282535cb102fafd
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1023.23)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1069.79)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (4.4.0-1031.34)
linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1025.26)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1025.26~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr)
Released (4.15.0-1030.31~14.04.1)
linux-azure-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.18.0-1004.4~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1025.26)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-euclid
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

Ubuntu 16.04 ESM (Xenial Xerus) Not vulnerable

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
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
(trusty was ignored [abandoned])
linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1021.22)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-1021.22~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
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-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
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
(trusty was ignored [abandoned])
linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
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
(trusty was ignored [abandoned])
linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable

Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-36.39~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.18.0-11.12~18.04.1)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.15.0-36.39~16.04.1)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1023.23)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1035.41)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
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 (4.19~rc1)
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
(trusty was ignored [out of standard support])
linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
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
(trusty was ignored [out of standard support])
linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
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
(trusty was ignored [out of standard support])
linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
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 (4.4.0-137.163~14.04.1)
linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
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
(trusty was ignored [abandoned])
linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
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
(trusty was ignored [abandoned])
linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
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
(trusty was ignored [abandoned])
linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1021.24)
Ubuntu 16.04 ESM (Xenial Xerus) Ignored
(was needed now end-of-life)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.15.0-1024.26)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1098.106)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist

linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.19~rc1)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable

Ubuntu 16.04 ESM (Xenial Xerus)
Released (4.4.0-1102.107)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist