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Vulnerability of Linux kernel: privilege escalation via i915_gem_execbuffer2_ioctl

Synthesis of the vulnerability 

An attacker can bypass restrictions via i915_gem_execbuffer2_ioctl of the Linux kernel, in order to escalate his privileges.
Vulnerable systems: Android OS, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.
Severity of this threat: 2/4.
Creation date: 24/01/2019.
Références of this weakness: CERTFR-2019-AVI-131, CVE-2018-20669, openSUSE-SU-2019:0203-1, SUSE-SU-2019:0765-1, SUSE-SU-2019:0767-1, VIGILANCE-VUL-28340.

Description of the vulnerability 

An attacker can bypass restrictions via i915_gem_execbuffer2_ioctl of the Linux kernel, in order to escalate his privileges.
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This vulnerability bulletin impacts software or systems such as Android OS, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.

Our Vigil@nce team determined that the severity of this security note is medium.

The trust level is of type confirmed by the editor, with an origin of user shell.

An attacker with a expert ability can exploit this cybersecurity note.

Solutions for this threat 

Linux kernel: version 4.19.129.
The version 4.19.129 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.14.185.
The version 4.14.185 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: patch for i915_gem_execbuffer2_ioctl.
A patch is indicated in information sources.

Google Android OS: patch 2019-09-05.
A 2019-09-05 patch is indicated in information sources.

Google Android/Pixel: patch for July 2020.
A patch is indicated in information sources.

openSUSE Leap 15.0: new kernel packages.
New packages are available:
  openSUSE Leap 15.0: kernel 4.12.14-lp150.12.48.1

SUSE LE 12 SP4: new kernel-azure packages.
New packages are available:
  SUSE LE 12 SP4: kernel-azure 4.12.14-6.9.1

SUSE LE 12 SP4: new kernel packages (27/03/2019).
New packages are available:
  SUSE LE 12 SP4: kernel 4.12.14-95.13.1

Wind River Linux: solution (21/05/2019).
The solution is indicated in information sources.
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