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Vulnerability of Linux kernel: memory leak via af9005_identify_state

Synthesis of the vulnerability 

An attacker can create a memory leak via af9005_identify_state() of the Linux kernel, in order to trigger a denial of service.
Impacted systems: Debian, Fedora, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this alert: 1/4.
Creation date: 08/11/2019.
Références of this alert: CERTFR-2019-AVI-612, CERTFR-2019-AVI-639, CERTFR-2019-AVI-652, CERTFR-2020-AVI-029, CERTFR-2020-AVI-096, CERTFR-2020-AVI-123, CERTFR-2020-AVI-130, CERTFR-2020-AVI-154, CVE-2019-18809, DLA-2114-1, FEDORA-2019-124a241044, FEDORA-2019-b86a7bdba0, openSUSE-SU-2019:2675-1, SUSE-SU-2019:3200-1, SUSE-SU-2019:3289-1, SUSE-SU-2019:3316-1, SUSE-SU-2019:3317-1, SUSE-SU-2019:3371-1, SUSE-SU-2019:3372-1, SUSE-SU-2019:3381-1, SUSE-SU-2020:0093-1, SUSE-SU-2020:0599-1, USN-4285-1, USN-4287-1, USN-4287-2, USN-4300-1, VIGILANCE-VUL-30815.

Description of the vulnerability 

An attacker can create a memory leak via af9005_identify_state() of the Linux kernel, in order to trigger a denial of service.
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This computer weakness announce impacts software or systems such as Debian, Fedora, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this security alert is low.

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 vulnerability.

Solutions for this threat 

Linux kernel: version 5.4.9.
The version 5.4.9 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 4.19.94.
The version 4.19.94 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.14.163.
The version 4.14.163 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.9.209.
The version 4.9.209 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: patch for af9005_identify_state.
A patch is indicated in information sources.

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

Fedora 30: new kernel packages.
New packages are available:
  Fedora 30: kernel 5.3.14-200.fc30

Fedora 31: new kernel packages.
New packages are available:
  Fedora 31: kernel 5.3.14-300.fc31

openSUSE Leap 15.1: new kernel packages (13/12/2019).
New packages are available:
  openSUSE Leap 15.1: kernel 4.12.14-lp151.28.36.1

SUSE LE 12 SP4: new kernel-azure packages (18/12/2019).
New packages are available:
  SUSE LE 12 SP4: kernel-azure 4.12.14-6.34.1

SUSE LE 12 SP4: new kernel packages (20/12/2019).
New packages are available:
  SUSE LE 12 SP4: kernel 4.12.14-95.45.1

SUSE LE 12 SP4: new kernel-rt packages.
New packages are available:
  SUSE LE 12 SP4: kernel-rt 4.12.14-8.12.1

SUSE LE 12 SP5: new kernel-azure packages (15/01/2020).
New packages are available:
  SUSE LE 12 SP5: kernel-azure 4.12.14-16.7.1

SUSE LE 12 SP5: new kernel packages (09/12/2019).
New packages are available:
  SUSE LE 12 SP5: kernel 4.12.14-122.7.1

SUSE LE 15 RTM: new kernel-azure packages (13/12/2019).
New packages are available:
  SUSE LE 15 RTM: kernel-azure 4.12.14-5.47.1

SUSE LE 15 RTM: new kernel packages (23/12/2019).
New packages are available:
  SUSE LE 15 RTM: kernel 4.12.14-150.47.1

SUSE LE 15 SP1: new kernel-azure packages (20/12/2019).
New packages are available:
  SUSE LE 15 SP1: kernel-azure 4.12.14-8.22.1

SUSE LE 15 SP1: new kernel packages (18/12/2019).
New packages are available:
  SUSE LE 15 SP1: kernel 4.12.14-197.29.1

Ubuntu 18.04: new linux-image-5.0.0 packages (19/02/2020).
New packages are available:
  Ubuntu 18.04 LTS: linux-image-azure 5.0.0.1032.43

Ubuntu: new linux-image-4.15.0 packages (19/02/2020).
New packages are available:
  Ubuntu 18.04 LTS: linux-image-generic 4.15.0.88.80
  Ubuntu 16.04 LTS: linux-image-generic-hwe-16.04 4.15.0.88.98
  Ubuntu 14.04 ESM: linux-image-azure 4.15.0.1069.55

Ubuntu: new linux-image-5.3.0 packages (17/03/2020).
New packages are available:
  Ubuntu 18.04 LTS: linux-image-generic-hwe-18.04 5.3.0.42.99
  Ubuntu 19.10: linux-image-generic 5.3.0.42.36

Wind River Linux: version 10.17.41.19.
The version 10.17.41.19 is fixed.

Wind River Linux: version 10.18.44.14.
The version 10.18.44.14 is fixed:
  https://support2.windriver.com/
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