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Vulnerability of Linux kernel: memory leak via unittest_data_add

Synthesis of the vulnerability 

An attacker can create a memory leak via unittest_data_add() of the Linux kernel, in order to trigger a denial of service.
Impacted products: Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.
Severity of this bulletin: 1/4.
Creation date: 19/11/2019.
Références of this threat: CERTFR-2019-AVI-612, CERTFR-2019-AVI-639, CERTFR-2019-AVI-652, CERTFR-2020-AVI-029, CERTFR-2020-AVI-130, CVE-2019-19049, 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, VIGILANCE-VUL-30909.

Description of the vulnerability 

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

Our Vigil@nce team determined that the severity of this threat bulletin 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 threat.

Solutions for this threat 

Linux kernel: version 5.3.10.
The version 5.3.10 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

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

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

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