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Ubuntu: (Multiple Advisories) (CVE-2019-15031): Linux kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2019-15031): Linux kernel vulnerabilities

Severity
4
CVSS
(AV:L/AC:L/Au:N/C:P/I:N/A:P)
Published
09/13/2019
Created
09/21/2019
Added
09/19/2019
Modified
03/22/2023

Description

In the Linux kernel through 5.2.14 on the powerpc platform, a local user can read vector registers of other users' processes via an interrupt. To exploit the venerability, a local user starts a transaction (via the hardware transactional memory instruction tbegin) and then accesses vector registers. At some point, the vector registers will be corrupted with the values from a different local Linux process, because MSR_TM_ACTIVE is misused in arch/powerpc/kernel/process.c.

Solution(s)

  • ubuntu-upgrade-linux-image-3-13-0-173-generic
  • ubuntu-upgrade-linux-image-3-13-0-173-generic-lpae
  • ubuntu-upgrade-linux-image-3-13-0-173-lowlatency
  • ubuntu-upgrade-linux-image-3-13-0-173-powerpc-e500
  • ubuntu-upgrade-linux-image-3-13-0-173-powerpc-e500mc
  • ubuntu-upgrade-linux-image-3-13-0-173-powerpc-smp
  • ubuntu-upgrade-linux-image-3-13-0-173-powerpc64-emb
  • ubuntu-upgrade-linux-image-3-13-0-173-powerpc64-smp
  • ubuntu-upgrade-linux-image-3-2-0-143-generic
  • ubuntu-upgrade-linux-image-3-2-0-143-generic-pae
  • ubuntu-upgrade-linux-image-3-2-0-143-highbank
  • ubuntu-upgrade-linux-image-3-2-0-143-omap
  • ubuntu-upgrade-linux-image-3-2-0-143-powerpc-smp
  • ubuntu-upgrade-linux-image-3-2-0-143-powerpc64-smp
  • ubuntu-upgrade-linux-image-3-2-0-143-virtual
  • ubuntu-upgrade-linux-image-4-15-0-1025-oracle
  • ubuntu-upgrade-linux-image-4-15-0-1044-gcp
  • ubuntu-upgrade-linux-image-4-15-0-1044-gke
  • ubuntu-upgrade-linux-image-4-15-0-1046-kvm
  • ubuntu-upgrade-linux-image-4-15-0-1047-raspi2
  • ubuntu-upgrade-linux-image-4-15-0-1050-aws
  • ubuntu-upgrade-linux-image-4-15-0-1056-oem
  • ubuntu-upgrade-linux-image-4-15-0-1059-azure
  • ubuntu-upgrade-linux-image-4-15-0-1064-snapdragon
  • ubuntu-upgrade-linux-image-4-15-0-64-generic
  • ubuntu-upgrade-linux-image-4-15-0-64-generic-lpae
  • ubuntu-upgrade-linux-image-4-15-0-64-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-1054-aws
  • ubuntu-upgrade-linux-image-4-4-0-1058-kvm
  • ubuntu-upgrade-linux-image-4-4-0-1094-aws
  • ubuntu-upgrade-linux-image-4-4-0-1122-raspi2
  • ubuntu-upgrade-linux-image-4-4-0-1126-snapdragon
  • ubuntu-upgrade-linux-image-4-4-0-164-generic
  • ubuntu-upgrade-linux-image-4-4-0-164-generic-lpae
  • ubuntu-upgrade-linux-image-4-4-0-164-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-164-powerpc-e500mc
  • ubuntu-upgrade-linux-image-4-4-0-164-powerpc-smp
  • ubuntu-upgrade-linux-image-4-4-0-164-powerpc64-emb
  • ubuntu-upgrade-linux-image-4-4-0-164-powerpc64-smp
  • ubuntu-upgrade-linux-image-5-0-0-1016-aws
  • ubuntu-upgrade-linux-image-5-0-0-1017-gcp
  • ubuntu-upgrade-linux-image-5-0-0-1017-gke
  • ubuntu-upgrade-linux-image-5-0-0-1017-kvm
  • ubuntu-upgrade-linux-image-5-0-0-1017-raspi2
  • ubuntu-upgrade-linux-image-5-0-0-1020-azure
  • ubuntu-upgrade-linux-image-5-0-0-1021-snapdragon
  • ubuntu-upgrade-linux-image-5-0-0-29-generic
  • ubuntu-upgrade-linux-image-5-0-0-29-generic-lpae
  • ubuntu-upgrade-linux-image-5-0-0-29-lowlatency
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-aws-hwe
  • ubuntu-upgrade-linux-image-azure
  • ubuntu-upgrade-linux-image-gcp
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-18-04
  • ubuntu-upgrade-linux-image-generic-lpae-lts-trusty
  • ubuntu-upgrade-linux-image-generic-lpae-lts-xenial
  • ubuntu-upgrade-linux-image-generic-lts-trusty
  • ubuntu-upgrade-linux-image-generic-lts-xenial
  • ubuntu-upgrade-linux-image-generic-pae
  • ubuntu-upgrade-linux-image-gke
  • ubuntu-upgrade-linux-image-gke-4-15
  • ubuntu-upgrade-linux-image-gke-5-0
  • ubuntu-upgrade-linux-image-highbank
  • ubuntu-upgrade-linux-image-kvm
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-hwe-16-04
  • ubuntu-upgrade-linux-image-lowlatency-hwe-18-04
  • ubuntu-upgrade-linux-image-lowlatency-lts-xenial
  • ubuntu-upgrade-linux-image-oem
  • ubuntu-upgrade-linux-image-omap
  • ubuntu-upgrade-linux-image-oracle
  • ubuntu-upgrade-linux-image-powerpc
  • ubuntu-upgrade-linux-image-powerpc-e500
  • ubuntu-upgrade-linux-image-powerpc-e500mc
  • ubuntu-upgrade-linux-image-powerpc-e500mc-lts-xenial
  • ubuntu-upgrade-linux-image-powerpc-smp
  • ubuntu-upgrade-linux-image-powerpc-smp-lts-xenial
  • ubuntu-upgrade-linux-image-powerpc64-emb
  • ubuntu-upgrade-linux-image-powerpc64-emb-lts-xenial
  • ubuntu-upgrade-linux-image-powerpc64-smp
  • ubuntu-upgrade-linux-image-powerpc64-smp-lts-xenial
  • ubuntu-upgrade-linux-image-raspi2
  • ubuntu-upgrade-linux-image-server
  • ubuntu-upgrade-linux-image-snapdragon
  • ubuntu-upgrade-linux-image-snapdragon-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual
  • ubuntu-upgrade-linux-image-virtual-hwe-16-04
  • ubuntu-upgrade-linux-image-virtual-hwe-18-04
  • ubuntu-upgrade-linux-image-virtual-lts-xenial

References

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