Debian Long Term Support / LTS Security Information / 2019 / Security Information -- DLA-1993-1 mesa

Debian Security Advisory

DLA-1993-1 mesa -- LTS security update

Date Reported:

15 Nov 2019

Affected Packages:

mesa

Vulnerable:

Yes

Security database references:

In the Debian bugtracking system: Bug 944298.
In Mitre's CVE dictionary: CVE-2019-5068.

More information:

Tim Brown discovered a shared memory permissions vulnerability in the Mesa 3D graphics library. Some Mesa X11 drivers use shared-memory XImages to implement back buffers for improved performance, but Mesa creates shared memory regions with permission mode 0777. An attacker can access the shared memory without any specific permissions.

For Debian 8 Jessie, this problem has been fixed in version 10.3.2-1+deb8u2.

We recommend that you upgrade your mesa packages.

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS