[USN-4271-1] Mesa vulnerability

Marc Deslauriers marc.deslauriers at canonical.com
Thu Feb 6 14:36:51 UTC 2020


==========================================================================
Ubuntu Security Notice USN-4271-1
February 06, 2020

mesa vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 19.10
- Ubuntu 18.04 LTS

Summary:

Mesa could be made to expose sensitive information.

Software Description:
- mesa: free implementation of the EGL API

Details:

Tim Brown discovered that Mesa incorrectly handled shared memory
permissions. A local attacker could use this issue to obtain and possibly
alter sensitive information belonging to another user.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 19.10:
  libd3dadapter9-mesa             19.2.8-0ubuntu0~19.10.2
  libegl-mesa0                    19.2.8-0ubuntu0~19.10.2
  libegl1-mesa                    19.2.8-0ubuntu0~19.10.2
  libgbm1                         19.2.8-0ubuntu0~19.10.2
  libgl1-mesa-dri                 19.2.8-0ubuntu0~19.10.2
  libgl1-mesa-glx                 19.2.8-0ubuntu0~19.10.2
  libglapi-mesa                   19.2.8-0ubuntu0~19.10.2
  libgles2-mesa                   19.2.8-0ubuntu0~19.10.2
  libglx-mesa0                    19.2.8-0ubuntu0~19.10.2
  libosmesa6                      19.2.8-0ubuntu0~19.10.2
  libwayland-egl1-mesa            19.2.8-0ubuntu0~19.10.2
  libxatracker2                   19.2.8-0ubuntu0~19.10.2
  mesa-opencl-icd                 19.2.8-0ubuntu0~19.10.2
  mesa-va-drivers                 19.2.8-0ubuntu0~19.10.2
  mesa-vdpau-drivers              19.2.8-0ubuntu0~19.10.2
  mesa-vulkan-drivers             19.2.8-0ubuntu0~19.10.2

Ubuntu 18.04 LTS:
  libd3dadapter9-mesa             19.2.8-0ubuntu0~18.04.2
  libegl-mesa0                    19.2.8-0ubuntu0~18.04.2
  libegl1-mesa                    19.2.8-0ubuntu0~18.04.2
  libgbm1                         19.2.8-0ubuntu0~18.04.2
  libgl1-mesa-dri                 19.2.8-0ubuntu0~18.04.2
  libgl1-mesa-glx                 19.2.8-0ubuntu0~18.04.2
  libglapi-mesa                   19.2.8-0ubuntu0~18.04.2
  libgles2-mesa                   19.2.8-0ubuntu0~18.04.2
  libglx-mesa0                    19.2.8-0ubuntu0~18.04.2
  libosmesa6                      19.2.8-0ubuntu0~18.04.2
  libwayland-egl1-mesa            19.2.8-0ubuntu0~18.04.2
  libxatracker2                   19.2.8-0ubuntu0~18.04.2
  mesa-opencl-icd                 19.2.8-0ubuntu0~18.04.2
  mesa-va-drivers                 19.2.8-0ubuntu0~18.04.2
  mesa-vdpau-drivers              19.2.8-0ubuntu0~18.04.2
  mesa-vulkan-drivers             19.2.8-0ubuntu0~18.04.2

After a standard system update you need to restart your session to make
all the necessary changes.

References:
  https://usn.ubuntu.com/4271-1
  CVE-2019-5068

Package Information:
  https://launchpad.net/ubuntu/+source/mesa/19.2.8-0ubuntu0~19.10.2
  https://launchpad.net/ubuntu/+source/mesa/19.2.8-0ubuntu0~18.04.2

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