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Ubuntu: (Multiple Advisories) (CVE-2017-9605): Linux kernel (HWE) kernel vulnerabilities

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Ubuntu: (Multiple Advisories) (CVE-2017-9605): Linux kernel (HWE) kernel vulnerabilities

Severity
5
CVSS
(AV:L/AC:L/Au:N/C:C/I:N/A:N)
Published
06/13/2017
Created
07/25/2018
Added
07/21/2017
Modified
08/25/2021

Description

The vmw_gb_surface_define_ioctl function (accessible via DRM_IOCTL_VMW_GB_SURFACE_CREATE) in drivers/gpu/drm/vmwgfx/vmwgfx_surface.c in the Linux kernel through 4.11.4 defines a backup_handle variable but does not give it an initial value. If one attempts to create a GB surface, with a previously allocated DMA buffer to be used as a backup buffer, the backup_handle variable does not get written to and is then later returned to user space, allowing local users to obtain sensitive information from uninitialized kernel memory via a crafted ioctl call.

Solution(s)

  • ubuntu-upgrade-linux-image-3-13-0-125-generic
  • ubuntu-upgrade-linux-image-3-13-0-125-generic-lpae
  • ubuntu-upgrade-linux-image-3-13-0-125-lowlatency
  • ubuntu-upgrade-linux-image-3-13-0-125-powerpc-e500
  • ubuntu-upgrade-linux-image-3-13-0-125-powerpc-e500mc
  • ubuntu-upgrade-linux-image-3-13-0-125-powerpc-smp
  • ubuntu-upgrade-linux-image-3-13-0-125-powerpc64-emb
  • ubuntu-upgrade-linux-image-3-13-0-125-powerpc64-smp
  • ubuntu-upgrade-linux-image-4-10-0-1011-raspi2
  • ubuntu-upgrade-linux-image-4-10-0-28-generic
  • ubuntu-upgrade-linux-image-4-10-0-28-generic-lpae
  • ubuntu-upgrade-linux-image-4-10-0-28-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-1022-gke
  • ubuntu-upgrade-linux-image-4-4-0-1026-aws
  • ubuntu-upgrade-linux-image-4-4-0-1065-raspi2
  • ubuntu-upgrade-linux-image-4-4-0-1067-snapdragon
  • ubuntu-upgrade-linux-image-4-4-0-87-generic
  • ubuntu-upgrade-linux-image-4-4-0-87-generic-lpae
  • ubuntu-upgrade-linux-image-4-4-0-87-lowlatency
  • ubuntu-upgrade-linux-image-4-4-0-87-powerpc-e500mc
  • ubuntu-upgrade-linux-image-4-4-0-87-powerpc-smp
  • ubuntu-upgrade-linux-image-4-4-0-87-powerpc64-emb
  • ubuntu-upgrade-linux-image-4-4-0-87-powerpc64-smp
  • ubuntu-upgrade-linux-image-4-8-0-1043-raspi2
  • ubuntu-upgrade-linux-image-4-8-0-59-generic
  • ubuntu-upgrade-linux-image-4-8-0-59-generic-lpae
  • ubuntu-upgrade-linux-image-4-8-0-59-lowlatency
  • ubuntu-upgrade-linux-image-4-8-0-59-powerpc-e500mc
  • ubuntu-upgrade-linux-image-4-8-0-59-powerpc-smp
  • ubuntu-upgrade-linux-image-4-8-0-59-powerpc64-emb
  • ubuntu-upgrade-linux-image-aws
  • ubuntu-upgrade-linux-image-generic
  • ubuntu-upgrade-linux-image-generic-hwe-16-04
  • ubuntu-upgrade-linux-image-generic-lpae
  • ubuntu-upgrade-linux-image-generic-lpae-hwe-16-04
  • 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-gke
  • ubuntu-upgrade-linux-image-lowlatency
  • ubuntu-upgrade-linux-image-lowlatency-hwe-16-04
  • ubuntu-upgrade-linux-image-lowlatency-lts-xenial
  • 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-snapdragon

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