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Vulnerability of Linux kernel: use after free via open may_create_in_sticky

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via open may_create_in_sticky() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Impacted products: Debian, Fedora, Android OS, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this bulletin: 2/4.
Creation date: 29/01/2020.
Références of this threat: CERTFR-2020-AVI-119, CERTFR-2020-AVI-124, CERTFR-2020-AVI-130, CERTFR-2020-AVI-191, CERTFR-2020-AVI-368, CVE-2020-8428, DLA-2242-1, DSA-4667-1, DSA-4698-1, FEDORA-2020-2a5cdd665c, FEDORA-2020-f884f9dd7d, openSUSE-SU-2020:0336-1, SUSE-SU-2020:0511-1, SUSE-SU-2020:0558-1, SUSE-SU-2020:0559-1, SUSE-SU-2020:0560-1, SUSE-SU-2020:0580-1, SUSE-SU-2020:0649-1, SUSE-SU-2020:0667-1, SUSE-SU-2020:1663-1, USN-4318-1, USN-4319-1, USN-4320-1, USN-4324-1, USN-4325-1, VIGILANCE-VUL-31455.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via open may_create_in_sticky() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
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This cybersecurity announce impacts software or systems such as Debian, Fedora, Android OS, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this threat alert 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 computer weakness alert.

Solutions for this threat 

Linux kernel: version 5.5.2.
The version 5.5.2 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 5.4.18.
The version 5.4.18 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 5.4.16.
The version 5.4.16 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 4.19.102.
The version 4.19.102 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.19.100.
The version 4.19.100 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.14.170.
The version 4.14.170 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.14.169.
The version 4.14.169 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.9.213.
The version 4.9.213 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 3.16.83.
The version 3.16.83 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v3.x/linux-3.16.83.tar.xz

Linux kernel: version 4.9.212.
The version 4.9.212 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.4.213.
The version 4.4.213 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.4.212.
The version 4.4.212 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: two patches for may_create_in_sticky.
A patch is indicated in information sources.

Debian 10: new linux packages.
New packages are available:
  Debian 10: linux 4.19.98-1+deb10u1

Debian 8: new linux-4.9 packages.
New packages are available:
  Debian 8: linux-4.9 4.9.210-1+deb9u1~deb8u1

Debian 9: new linux packages.
New packages are available:
  Debian 9: linux 4.9.210-1+deb9u1

Fedora: new kernel-headers packages.
New packages are available:
  Fedora 30: kernel-headers 5.4.18-100.fc30
  Fedora 31: kernel-headers 5.4.18-200.fc31

Fedora: new kernel packages.
New packages are available:
  Fedora 30: kernel 5.4.19-100.fc30
  Fedora 31: kernel 5.4.19-200.fc31

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

openSUSE Leap 15.1: new kernel packages (13/03/2020).
New packages are available:
  openSUSE Leap 15.1: kernel 4.12.14-lp151.28.40.1

SUSE LE 12 SP4: new kernel-azure packages (03/03/2020).
New packages are available:
  SUSE LE 12 SP4: kernel-azure 4.12.14-6.37.1

SUSE LE 12 SP4: new kernel-rt packages.
New packages are available:
  SUSE LE 12 SP4: kernel-rt 4.12.14-8.15.1

SUSE LE 12 SP5: new kernel-azure packages (03/03/2020).
New packages are available:
  SUSE LE 12 SP5: kernel-azure 4.12.14-16.10.1

SUSE LE 12 SP5: new kernel packages (04/03/2020).
New packages are available:
  SUSE LE 12 SP5: kernel 4.12.14-122.17.1

SUSE LE 12 SP5: new kernel-rt packages.
New packages are available:
  SUSE LE 12 SP5: kernel-rt 4.12.14-10.5.1

SUSE LE 15: new kernel packages.
New packages are available:
  SUSE LE 15 RTM: kernel 4.12.14-150.52.1

SUSE LE 15 SP1: new kernel-azure packages (28/02/2020).
New packages are available:
  SUSE LE 15 SP1: kernel-azure 4.12.14-8.27.1

SUSE LE 15 SP1: new kernel packages (03/03/2020).
New packages are available:
  SUSE LE 15 SP1: kernel 4.12.14-197.34.1

Ubuntu 18.04: new linux-image-5.0.0 azure packages.
New packages are available:
  Ubuntu 18.04 LTS: linux-image-azure 5.0.0.1036.47

Ubuntu: new linux-image-4.15.0 azure/aws packages.
New packages are available:
  Ubuntu 14.04 ESM: linux-image-azure 4.15.0.1077.62
  Ubuntu 16.04 LTS: linux-image-azure 4.15.0.1077.80
  Ubuntu 18.04 LTS: linux-image-aws 4.15.0.1065.67

Ubuntu: new linux-image-4.15.0 packages.
New packages are available:
  Ubuntu 16.04 LTS: linux-image-generic-hwe-16.04 4.15.0.96.104
  Ubuntu 18.04 LTS: linux-image-generic 4.15.0.96.87

Ubuntu: new linux-image-4.4.0 packages.
New packages are available:
  Ubuntu 14.04 ESM: linux-image-generic-lts-xenial 4.4.0.177.156
  Ubuntu 16.04 LTS: linux-image-generic 4.4.0.177.185

Ubuntu: new linux-image-5.3.0 packages (07/04/2020).
New packages are available:
  Ubuntu 18.04 LTS: linux-image-generic-hwe-18.04 5.3.0.46.102
  Ubuntu 19.10: linux-image-generic 5.3.0.46.39

Wind River Linux: version 10.19.45.7.
The version 10.19.45.7 is fixed:
  https://support2.windriver.com/
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