Ubuntu 4135-1: Linux kernel vulnerabilities

    Date18 Sep 2019
    CategoryUbuntu
    334
    Posted ByLinuxSecurity Advisories
    Several security issues were fixed in the Linux kernel.
    ==========================================================================
    Ubuntu Security Notice USN-4135-1
    September 18, 2019
    
    linux, linux-aws, linux-aws-hwe, linux-azure, linux-gcp,
    linux-gke-4.15, linux-gke-5.0, linux-hwe, linux-kvm, linux-oem,
    linux-oracle, linux-raspi2, linux-snapdragon vulnerabilities
    ==========================================================================
    
    A security issue affects these releases of Ubuntu and its derivatives:
    
    - Ubuntu 19.04
    - Ubuntu 18.04 LTS
    - Ubuntu 16.04 LTS
    
    Summary:
    
    Several security issues were fixed in the Linux kernel.
    
    Software Description:
    - linux: Linux kernel
    - linux-aws: Linux kernel for Amazon Web Services (AWS) systems
    - linux-azure: Linux kernel for Microsoft Azure Cloud systems
    - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems
    - linux-kvm: Linux kernel for cloud environments
    - linux-raspi2: Linux kernel for Raspberry Pi 2
    - linux-snapdragon: Linux kernel for Snapdragon processors
    - linux-gke-4.15: Linux kernel for Google Container Engine (GKE) systems
    - linux-gke-5.0: Linux kernel for Google Container Engine (GKE) systems
    - linux-hwe: Linux hardware enablement (HWE) kernel
    - linux-oem: Linux kernel for OEM processors
    - linux-oracle: Linux kernel for Oracle Cloud systems
    - linux-aws-hwe: Linux kernel for Amazon Web Services (AWS-HWE) systems
    
    Details:
    
    Peter Pi discovered a buffer overflow in the virtio network backend
    (vhost_net) implementation in the Linux kernel. An attacker in a guest may
    be able to use this to cause a denial of service (host OS crash) or
    possibly execute arbitrary code in the host OS. (CVE-2019-14835)
    
    It was discovered that the Linux kernel on PowerPC architectures did not
    properly handle Facility Unavailable exceptions in some situations. A local
    attacker could use this to expose sensitive information. (CVE-2019-15030)
    
    It was discovered that the Linux kernel on PowerPC architectures did not
    properly handle exceptions on interrupts in some situations. A local
    attacker could use this to expose sensitive information. (CVE-2019-15031)
    
    Update instructions:
    
    The problem can be corrected by updating your system to the following
    package versions:
    
    Ubuntu 19.04:
      linux-image-5.0.0-1016-aws      5.0.0-1016.18
      linux-image-5.0.0-1017-gcp      5.0.0-1017.17
      linux-image-5.0.0-1017-kvm      5.0.0-1017.18
      linux-image-5.0.0-1017-raspi2   5.0.0-1017.17
      linux-image-5.0.0-1020-azure    5.0.0-1020.21
      linux-image-5.0.0-1021-snapdragon  5.0.0-1021.22
      linux-image-5.0.0-29-generic    5.0.0-29.31
      linux-image-5.0.0-29-generic-lpae  5.0.0-29.31
      linux-image-5.0.0-29-lowlatency  5.0.0-29.31
      linux-image-aws                 5.0.0.1016.17
      linux-image-azure               5.0.0.1020.19
      linux-image-gcp                 5.0.0.1017.43
      linux-image-generic             5.0.0.29.30
      linux-image-generic-lpae        5.0.0.29.30
      linux-image-gke                 5.0.0.1017.43
      linux-image-kvm                 5.0.0.1017.17
      linux-image-lowlatency          5.0.0.29.30
      linux-image-raspi2              5.0.0.1017.14
      linux-image-snapdragon          5.0.0.1021.14
      linux-image-virtual             5.0.0.29.30
    
    Ubuntu 18.04 LTS:
      linux-image-4.15.0-1025-oracle  4.15.0-1025.28
      linux-image-4.15.0-1044-gcp     4.15.0-1044.70
      linux-image-4.15.0-1044-gke     4.15.0-1044.46
      linux-image-4.15.0-1046-kvm     4.15.0-1046.46
      linux-image-4.15.0-1047-raspi2  4.15.0-1047.51
      linux-image-4.15.0-1050-aws     4.15.0-1050.52
      linux-image-4.15.0-1056-oem     4.15.0-1056.65
      linux-image-4.15.0-1064-snapdragon  4.15.0-1064.71
      linux-image-4.15.0-64-generic   4.15.0-64.73
      linux-image-4.15.0-64-generic-lpae  4.15.0-64.73
      linux-image-4.15.0-64-lowlatency  4.15.0-64.73
      linux-image-5.0.0-1017-gke      5.0.0-1017.17~18.04.1
      linux-image-5.0.0-1020-azure    5.0.0-1020.21~18.04.1
      linux-image-5.0.0-29-generic    5.0.0-29.31~18.04.1
      linux-image-5.0.0-29-generic-lpae  5.0.0-29.31~18.04.1
      linux-image-5.0.0-29-lowlatency  5.0.0-29.31~18.04.1
      linux-image-aws                 4.15.0.1050.49
      linux-image-azure               5.0.0.1020.30
      linux-image-gcp                 4.15.0.1044.70
      linux-image-generic             4.15.0.64.66
      linux-image-generic-hwe-18.04   5.0.0.29.86
      linux-image-generic-lpae        4.15.0.64.66
      linux-image-generic-lpae-hwe-18.04  5.0.0.29.86
      linux-image-gke                 4.15.0.1044.47
      linux-image-gke-4.15            4.15.0.1044.47
      linux-image-gke-5.0             5.0.0.1017.7
      linux-image-kvm                 4.15.0.1046.46
      linux-image-lowlatency          4.15.0.64.66
      linux-image-lowlatency-hwe-18.04  5.0.0.29.86
      linux-image-oem                 4.15.0.1056.60
      linux-image-oracle              4.15.0.1025.28
      linux-image-powerpc-e500mc      4.15.0.64.66
      linux-image-powerpc-smp         4.15.0.64.66
      linux-image-powerpc64-emb       4.15.0.64.66
      linux-image-powerpc64-smp       4.15.0.64.66
      linux-image-raspi2              4.15.0.1047.45
      linux-image-snapdragon          4.15.0.1064.67
      linux-image-snapdragon-hwe-18.04  5.0.0.29.86
      linux-image-virtual             4.15.0.64.66
      linux-image-virtual-hwe-18.04   5.0.0.29.86
    
    Ubuntu 16.04 LTS:
      linux-image-4.15.0-1025-oracle  4.15.0-1025.28~16.04.1
      linux-image-4.15.0-1044-gcp     4.15.0-1044.46
      linux-image-4.15.0-1050-aws     4.15.0-1050.52~16.04.1
      linux-image-4.15.0-1059-azure   4.15.0-1059.64
      linux-image-4.15.0-64-generic   4.15.0-64.73~16.04.1
      linux-image-4.15.0-64-generic-lpae  4.15.0-64.73~16.04.1
      linux-image-4.15.0-64-lowlatency  4.15.0-64.73~16.04.1
      linux-image-4.4.0-1058-kvm      4.4.0-1058.65
      linux-image-4.4.0-1094-aws      4.4.0-1094.105
      linux-image-4.4.0-1122-raspi2   4.4.0-1122.131
      linux-image-4.4.0-1126-snapdragon  4.4.0-1126.132
      linux-image-4.4.0-164-generic   4.4.0-164.192
      linux-image-4.4.0-164-generic-lpae  4.4.0-164.192
      linux-image-4.4.0-164-lowlatency  4.4.0-164.192
      linux-image-4.4.0-164-powerpc-e500mc  4.4.0-164.192
      linux-image-4.4.0-164-powerpc-smp  4.4.0-164.192
      linux-image-4.4.0-164-powerpc64-emb  4.4.0-164.192
      linux-image-4.4.0-164-powerpc64-smp  4.4.0-164.192
      linux-image-aws                 4.4.0.1094.98
      linux-image-aws-hwe             4.15.0.1050.50
      linux-image-azure               4.15.0.1059.62
      linux-image-gcp                 4.15.0.1044.58
      linux-image-generic             4.4.0.164.172
      linux-image-generic-hwe-16.04   4.15.0.64.84
      linux-image-generic-lpae        4.4.0.164.172
      linux-image-generic-lpae-hwe-16.04  4.15.0.64.84
      linux-image-gke                 4.15.0.1044.58
      linux-image-kvm                 4.4.0.1058.58
      linux-image-lowlatency          4.4.0.164.172
      linux-image-lowlatency-hwe-16.04  4.15.0.64.84
      linux-image-oem                 4.15.0.64.84
      linux-image-oracle              4.15.0.1025.18
      linux-image-powerpc-e500mc      4.4.0.164.172
      linux-image-powerpc-smp         4.4.0.164.172
      linux-image-powerpc64-emb       4.4.0.164.172
      linux-image-powerpc64-smp       4.4.0.164.172
      linux-image-raspi2              4.4.0.1122.122
      linux-image-snapdragon          4.4.0.1126.118
      linux-image-virtual             4.4.0.164.172
      linux-image-virtual-hwe-16.04   4.15.0.64.84
    
    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.
    
    References:
      https://usn.ubuntu.com/4135-1
      CVE-2019-14835, CVE-2019-15030, CVE-2019-15031
    
    Package Information:
      https://launchpad.net/ubuntu/+source/linux/5.0.0-29.31
      https://launchpad.net/ubuntu/+source/linux-aws/5.0.0-1016.18
      https://launchpad.net/ubuntu/+source/linux-azure/5.0.0-1020.21
      https://launchpad.net/ubuntu/+source/linux-gcp/5.0.0-1017.17
      https://launchpad.net/ubuntu/+source/linux-kvm/5.0.0-1017.18
      https://launchpad.net/ubuntu/+source/linux-raspi2/5.0.0-1017.17
      https://launchpad.net/ubuntu/+source/linux-snapdragon/5.0.0-1021.22
      https://launchpad.net/ubuntu/+source/linux/4.15.0-64.73
      https://launchpad.net/ubuntu/+source/linux-aws/4.15.0-1050.52
      https://launchpad.net/ubuntu/+source/linux-azure/5.0.0-1020.21~18.04.1
      https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1044.70
      https://launchpad.net/ubuntu/+source/linux-gke-4.15/4.15.0-1044.46
      https://launchpad.net/ubuntu/+source/linux-gke-5.0/5.0.0-1017.17~18.04.1
      https://launchpad.net/ubuntu/+source/linux-hwe/5.0.0-29.31~18.04.1
      https://launchpad.net/ubuntu/+source/linux-kvm/4.15.0-1046.46
      https://launchpad.net/ubuntu/+source/linux-oem/4.15.0-1056.65
      https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1025.28
      https://launchpad.net/ubuntu/+source/linux-raspi2/4.15.0-1047.51
      https://launchpad.net/ubuntu/+source/linux-snapdragon/4.15.0-1064.71
      https://launchpad.net/ubuntu/+source/linux/4.4.0-164.192
      https://launchpad.net/ubuntu/+source/linux-aws/4.4.0-1094.105
      https://launchpad.net/ubuntu/+source/linux-aws-hwe/4.15.0-1050.52~16.04.1
      https://launchpad.net/ubuntu/+source/linux-azure/4.15.0-1059.64
      https://launchpad.net/ubuntu/+source/linux-gcp/4.15.0-1044.46
      https://launchpad.net/ubuntu/+source/linux-hwe/4.15.0-64.73~16.04.1
      https://launchpad.net/ubuntu/+source/linux-kvm/4.4.0-1058.65
      https://launchpad.net/ubuntu/+source/linux-oracle/4.15.0-1025.28~16.04.1
      https://launchpad.net/ubuntu/+source/linux-raspi2/4.4.0-1122.131
      https://launchpad.net/ubuntu/+source/linux-snapdragon/4.4.0-1126.132
    
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