USN-4095-1: Linux kernel vulnerabilities
13 August 2019
Several security issues were fixed in the Linux kernel.
Releases
Packages
- linux - Linux kernel
- linux-aws - Linux kernel for Amazon Web Services (AWS) systems
- linux-kvm - Linux kernel for cloud environments
- linux-raspi2 - Linux kernel for Raspberry Pi 2
- linux-snapdragon - Linux kernel for Snapdragon processors
Details
Eli Biham and Lior Neumann discovered that the Bluetooth implementation in
the Linux kernel did not properly validate elliptic curve parameters during
Diffie-Hellman key exchange in some situations. An attacker could use this
to expose sensitive information. (CVE-2018-5383)
It was discovered that a heap buffer overflow existed in the Marvell
Wireless LAN device driver for the Linux kernel. An attacker could use this
to cause a denial of service (system crash) or possibly execute arbitrary
code. (CVE-2019-10126)
Andrei Vlad Lutas and Dan Lutas discovered that some x86 processors
incorrectly handle SWAPGS instructions during speculative execution. A
local attacker could use this to expose sensitive information (kernel
memory). (CVE-2019-1125)
Jann Horn discovered that a race condition existed in the Linux kernel when
performing core dumps. A local attacker could use this to cause a denial of
service (system crash) or expose sensitive information. (CVE-2019-11599)
It was discovered that the PowerPC dlpar implementation in the Linux kernel
did not properly check for allocation errors in some situations. A local
attacker could possibly use this to cause a denial of service (system
crash). (CVE-2019-12614)
Jann Horn discovered that the ptrace implementation in the Linux kernel did
not properly record credentials in some situations. A local attacker could
use this to cause a denial of service (system crash) or possibly gain
administrative privileges. (CVE-2019-13272)
It was discovered that the Marvell Wireless LAN device driver in the Linux
kernel did not properly validate the BSS descriptor. A local attacker could
possibly use this to cause a denial of service (system crash) or possibly
execute arbitrary code. (CVE-2019-3846)
Update instructions
The problem can be corrected by updating your system to the following package versions:
Ubuntu 16.04
-
linux-image-4.4.0-1054-kvm
-
4.4.0-1054.61
-
linux-image-4.4.0-1090-aws
-
4.4.0-1090.101
-
linux-image-4.4.0-1118-raspi2
-
4.4.0-1118.127
-
linux-image-4.4.0-1122-snapdragon
-
4.4.0-1122.128
-
linux-image-4.4.0-159-generic
-
4.4.0-159.187
-
linux-image-4.4.0-159-generic-lpae
-
4.4.0-159.187
-
linux-image-4.4.0-159-lowlatency
-
4.4.0-159.187
-
linux-image-4.4.0-159-powerpc-e500mc
-
4.4.0-159.187
-
linux-image-4.4.0-159-powerpc-smp
-
4.4.0-159.187
-
linux-image-4.4.0-159-powerpc64-emb
-
4.4.0-159.187
-
linux-image-4.4.0-159-powerpc64-smp
-
4.4.0-159.187
-
linux-image-aws
-
4.4.0.1090.94
-
linux-image-generic
-
4.4.0.159.167
-
linux-image-generic-lpae
-
4.4.0.159.167
-
linux-image-kvm
-
4.4.0.1054.54
-
linux-image-lowlatency
-
4.4.0.159.167
-
linux-image-powerpc-e500mc
-
4.4.0.159.167
-
linux-image-powerpc-smp
-
4.4.0.159.167
-
linux-image-powerpc64-emb
-
4.4.0.159.167
-
linux-image-powerpc64-smp
-
4.4.0.159.167
-
linux-image-raspi2
-
4.4.0.1118.118
-
linux-image-snapdragon
-
4.4.0.1122.114
-
linux-image-virtual
-
4.4.0.159.167
After a standard system update you need to reboot your computer to make
all the necessary changes.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed.
Unless you manually uninstalled the standard kernel metapackages
(e.g. linux-generic, linux-generic-lts-RELEASE, linux-virtual,
linux-powerpc), a standard system upgrade will automatically perform
this as well.
Related notices
- USN-4118-1: linux-image-4.15.0-1047-aws, linux-aws, linux-aws-hwe, linux-image-aws, linux-image-aws-hwe
- USN-4094-1: linux-image-generic-lpae-hwe-16.04, linux-snapdragon, linux-image-gcp, linux-azure, linux-image-snapdragon, linux-image-generic-lpae, linux-image-kvm, linux-image-lowlatency-hwe-16.04, linux-oem, linux-image-4.15.0-1040-gcp, linux-image-oracle, linux-image-generic-hwe-16.04-edge, linux-image-gke-4.15, linux-image-oem, linux, linux-image-generic, linux-image-lowlatency, linux-image-4.15.0-1050-oem, linux-image-generic-hwe-16.04, linux-image-4.15.0-1060-snapdragon, linux-gcp, linux-gke-4.15, linux-image-lowlatency-hwe-16.04-edge, linux-image-4.15.0-1043-raspi2, linux-image-virtual-hwe-16.04-edge, linux-image-generic-lpae-hwe-16.04-edge, linux-image-4.15.0-1042-kvm, linux-image-4.15.0-1021-oracle, linux-oracle, linux-image-4.15.0-1040-gke, linux-image-virtual, linux-raspi2, linux-kvm, linux-image-4.15.0-58-lowlatency, linux-image-4.15.0-58-generic, linux-image-virtual-hwe-16.04, linux-image-4.15.0-58-generic-lpae, linux-hwe, linux-image-raspi2, linux-image-gke
- USN-4095-2: linux-image-4.4.0-1050-aws, linux-aws, linux-image-powerpc-e500mc-lts-xenial, linux-image-generic-lts-xenial, linux-image-lowlatency-lts-xenial, linux-image-powerpc-smp-lts-xenial, linux-image-4.4.0-159-powerpc-e500mc, linux-image-powerpc64-smp-lts-xenial, linux-lts-xenial, linux-image-4.4.0-159-powerpc64-emb, linux-image-4.4.0-159-powerpc64-smp, linux-image-aws, linux-image-4.4.0-159-generic-lpae, linux-image-4.4.0-159-powerpc-smp, linux-image-4.4.0-159-lowlatency, linux-image-4.4.0-159-generic, linux-image-generic-lpae-lts-xenial, linux-image-virtual-lts-xenial, linux-image-powerpc64-emb-lts-xenial
- USN-4351-1: scsi-firmware, linux-firmware, nic-firmware
- USN-4117-1: linux-image-5.0.0-1014-aws, linux-aws, linux-image-aws
- USN-4093-1: linux-image-5.0.0-1013-kvm, linux-snapdragon, linux-image-gcp, linux-azure, linux-image-snapdragon, linux-image-generic-lpae, linux-image-5.0.0-25-generic-lpae, linux-image-kvm, linux-image-5.0.0-1018-snapdragon, linux-image-virtual-hwe-18.04, linux, linux-image-generic, linux-image-lowlatency, linux-gcp, linux-image-snapdragon-hwe-18.04, linux-image-generic-lpae-hwe-18.04, linux-image-azure, linux-image-generic-hwe-18.04, linux-image-virtual, linux-raspi2, linux-image-5.0.0-1013-gcp, linux-kvm, linux-image-5.0.0-25-generic, linux-image-lowlatency-hwe-18.04, linux-image-raspi2, linux-hwe, linux-image-gke, linux-image-5.0.0-1014-azure, linux-image-5.0.0-25-lowlatency, linux-image-5.0.0-1014-raspi2
- USN-4096-1: linux-aws, linux-aws-hwe, linux-image-aws, linux-image-aws-hwe, linux-image-4.15.0-1045-aws, linux-image-5.0.0-1012-aws
- USN-4115-1: linux-image-4.15.0-60-generic-lpae, linux-image-generic-lpae-hwe-16.04, linux-image-4.15.0-1056-azure, linux-image-gcp, linux-azure, linux-image-generic-lpae, linux-image-4.15.0-60-generic, linux-image-4.15.0-1041-gcp, linux-image-kvm, linux-image-lowlatency-hwe-16.04, linux-image-oracle, linux-image-4.15.0-60-lowlatency, linux-image-generic-hwe-16.04-edge, linux-image-gke-4.15, linux-image-oem, linux, linux-image-generic, linux-image-lowlatency, linux-image-generic-hwe-16.04, linux-gcp, linux-gke-4.15, linux-image-4.15.0-1044-raspi2, linux-image-lowlatency-hwe-16.04-edge, linux-image-virtual-hwe-16.04-edge, linux-image-generic-lpae-hwe-16.04-edge, linux-image-azure, linux-oracle, linux-image-virtual, linux-image-4.15.0-1022-oracle, linux-image-4.15.0-1041-gke, linux-raspi2, linux-kvm, linux-image-4.15.0-1043-kvm, linux-image-virtual-hwe-16.04, linux-image-raspi2, linux-hwe, linux-image-gke
- USN-4069-2: linux-image-5.0.0-23-generic-lpae, linux-image-snapdragon-hwe-18.04, linux-image-generic-lpae-hwe-18.04, linux-image-virtual-hwe-18.04, linux-image-lowlatency-hwe-18.04, linux-hwe, linux-image-5.0.0-23-generic, linux-image-5.0.0-23-lowlatency, linux-image-generic-hwe-18.04
- USN-4069-1: linux-snapdragon, linux-aws, linux-image-gcp, linux-azure, linux-image-snapdragon, linux-image-generic-lpae, linux-image-kvm, linux, linux-image-5.0.0-1017-snapdragon, linux-image-generic, linux-image-lowlatency, linux-gcp, linux-image-5.0.0-21-generic, linux-image-aws, linux-image-azure, linux-image-5.0.0-21-lowlatency, linux-image-virtual, linux-image-5.0.0-1011-gcp, linux-image-5.0.0-1013-raspi2, linux-raspi2, linux-image-5.0.0-1011-aws, linux-kvm, linux-image-5.0.0-1011-kvm, linux-image-5.0.0-1012-azure, linux-image-5.0.0-21-generic-lpae, linux-image-raspi2, linux-image-gke
- USN-4076-1: linux-image-virtual-lts-utopic, linux-image-generic-lpae-lts-utopic, linux-image-powerpc64-smp, linux-image-virtual-lts-wily, linux-image-virtual-lts-vivid, linux-aws, linux-image-generic-lts-vivid, linux-image-powerpc-e500mc-lts-xenial, linux-image-generic-lts-xenial, linux-image-4.4.0-157-powerpc-smp, linux-image-4.4.0-157-powerpc64-emb, linux-image-powerpc-e500mc-lts-wily, linux-image-generic-lpae, linux-image-kvm, linux-image-powerpc64-emb, linux-image-powerpc64-smp-lts-wily, linux-image-generic-lpae-lts-wily, linux-image-powerpc-smp, linux-image-lowlatency-lts-utopic, linux-image-generic-lts-wily, linux-image-lowlatency-lts-vivid, linux-image-4.4.0-157-powerpc64-smp, linux-image-powerpc64-smp-lts-utopic, linux-image-powerpc64-smp-lts-vivid, linux-image-powerpc-e500mc-lts-utopic, linux, linux-image-generic, linux-image-lowlatency-lts-xenial, linux-image-lowlatency, linux-image-powerpc-smp-lts-xenial, linux-image-powerpc64-smp-lts-xenial, linux-image-4.4.0-157-lowlatency, linux-image-powerpc-smp-lts-utopic, linux-image-powerpc64-emb-lts-utopic, linux-image-powerpc-smp-lts-vivid, linux-image-powerpc-e500mc, linux-image-powerpc-smp-lts-wily, linux-image-4.4.0-157-powerpc-e500mc, linux-image-aws, linux-image-4.4.0-157-generic-lpae, linux-image-generic-lpae-lts-vivid, linux-image-powerpc64-emb-lts-wily, linux-image-virtual, linux-image-powerpc-e500mc-lts-vivid, linux-image-powerpc64-emb-lts-vivid, linux-image-4.4.0-157-generic, linux-image-generic-lts-utopic, linux-image-generic-lpae-lts-xenial, linux-image-4.4.0-1117-raspi2, linux-raspi2, linux-image-lowlatency-lts-wily, linux-image-raspi2, linux-image-virtual-lts-xenial, linux-image-4.4.0-1088-aws, linux-kvm, linux-image-4.4.0-1052-kvm, linux-image-powerpc64-emb-lts-xenial
- USN-3980-1: linux-image-powerpc64-smp, linux-image-4.18.0-20-generic-lpae, linux-aws, linux-image-gcp, linux-azure, linux-image-snapdragon, linux-image-generic-lpae, linux-image-kvm, linux-image-powerpc64-emb, linux-image-powerpc-smp, linux, linux-image-generic, linux-image-lowlatency, linux-gcp, linux-image-4.18.0-20-lowlatency, linux-image-powerpc-e500mc, linux-image-4.18.0-1016-aws, linux-image-aws, linux-image-azure, linux-image-4.18.0-1014-raspi2, linux-image-virtual, linux-image-4.18.0-1012-kvm, linux-image-4.18.0-1018-azure, linux-image-4.18.0-20-generic, linux-raspi2, linux-kvm, linux-image-4.18.0-20-snapdragon, linux-image-4.18.0-1011-gcp, linux-image-raspi2, linux-image-gke
- USN-3981-1: linux-image-generic-lpae-hwe-16.04, linux-image-4.15.0-50-lowlatency, linux-snapdragon, linux-aws, linux-image-gcp, linux-image-4.15.0-1034-kvm, linux-image-snapdragon, linux-image-generic-lpae, linux-image-kvm, linux-image-lowlatency-hwe-16.04, linux-image-4.15.0-1032-gcp, linux-oem, linux-image-4.15.0-1053-snapdragon, linux-image-oracle, linux-image-4.15.0-50-generic, linux-image-generic-hwe-16.04-edge, linux-image-oem, linux, linux-image-generic, linux-image-lowlatency, linux-image-generic-hwe-16.04, linux-gcp, linux-image-lowlatency-hwe-16.04-edge, linux-image-virtual-hwe-16.04-edge, linux-image-4.15.0-1038-oem, linux-image-aws, linux-image-generic-lpae-hwe-16.04-edge, linux-image-4.15.0-1013-oracle, linux-oracle, linux-image-virtual, linux-raspi2, linux-image-4.15.0-1039-aws, linux-image-virtual-hwe-16.04, linux-image-raspi2, linux-image-4.15.0-1036-raspi2, linux-kvm, linux-image-4.15.0-50-generic-lpae
- USN-3981-2: linux-image-generic-lpae-hwe-16.04, linux-image-4.15.0-50-lowlatency, linux-image-gcp, linux-image-4.15.0-1045-azure, linux-azure, linux-image-lowlatency-hwe-16.04, linux-image-4.15.0-1032-gcp, linux-image-oracle, linux-image-4.15.0-50-generic, linux-image-oem, linux-image-generic-hwe-16.04, linux-gcp, linux-image-4.15.0-1013-oracle, linux-image-azure, linux-oracle, linux-image-virtual-hwe-16.04, linux-hwe, linux-image-gke, linux-image-4.15.0-50-generic-lpae
- USN-3980-2: linux-image-4.18.0-1018-azure, linux-image-4.18.0-20-lowlatency, linux-image-snapdragon-hwe-18.04, linux-image-4.18.0-20-generic, linux-image-4.18.0-20-generic-lpae, linux-image-azure, linux-image-4.18.0-20-snapdragon, linux-image-generic-lpae-hwe-18.04, linux-image-virtual-hwe-18.04, linux-image-lowlatency-hwe-18.04, linux-hwe, linux-azure, linux-image-generic-hwe-18.04
- USN-3979-1: linux-image-5.0.0-1006-azure, linux-aws, linux-image-5.0.0-1006-aws, linux-image-gcp, linux-image-5.0.0-15-generic, linux-azure, linux-image-generic-lpae, linux-image-kvm, linux-image-5.0.0-1006-kvm, linux, linux-image-generic, linux-image-lowlatency, linux-image-5.0.0-1006-gcp, linux-gcp, linux-image-5.0.0-15-generic-lpae, linux-image-aws, linux-image-azure, linux-image-virtual, linux-raspi2, linux-kvm, linux-image-raspi2, linux-image-5.0.0-1008-raspi2, linux-image-5.0.0-15-lowlatency, linux-image-gke