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Vulnerability of Linux kernel: memory leak via ccp_run_sha_cmd

Synthesis of the vulnerability 

An attacker can create a memory leak via ccp_run_sha_cmd() of the Linux kernel, in order to trigger a denial of service.
Impacted software: Fedora, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.
Severity of this computer vulnerability: 1/4.
Creation date: 08/11/2019.
Références of this announce: CERTFR-2020-AVI-029, CERTFR-2020-AVI-119, CERTFR-2020-AVI-124, CERTFR-2020-AVI-130, CVE-2019-18808, FEDORA-2019-124a241044, FEDORA-2019-b86a7bdba0, openSUSE-SU-2020:0336-1, SUSE-SU-2019:3381-1, SUSE-SU-2020:0093-1, SUSE-SU-2020:0511-1, SUSE-SU-2020:0559-1, SUSE-SU-2020:0560-1, SUSE-SU-2020:0580-1, SUSE-SU-2020:0599-1, VIGILANCE-VUL-30814.

Description of the vulnerability 

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

Our Vigil@nce team determined that the severity of this vulnerability note 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 cybersecurity threat.

Solutions for this threat 

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

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 (13/03/2020).
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 4.12.14-8.12.1

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

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 (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

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