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Vulnerability of Linux kernel: denial of service via Powerpc Hardware Transactional Memory

Synthesis of the vulnerability 

An attacker can trigger a fatal error via Powerpc Hardware Transactional Memory of the Linux kernel, in order to trigger a denial of service.
Vulnerable systems: Debian, Fedora, Linux, openSUSE Leap, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this threat: 1/4.
Creation date: 22/07/2019.
Références of this weakness: CERTFR-2019-AVI-376, CERTFR-2019-AVI-381, CERTFR-2019-AVI-392, CERTFR-2019-AVI-418, CERTFR-2019-AVI-419, CERTFR-2019-AVI-441, CERTFR-2019-AVI-458, CERTFR-2020-AVI-180, CERTFR-2020-AVI-459, CVE-2019-13648, DLA-1885-1, DSA-4495-1, DSA-4497-1, FEDORA-2019-7aecfe1c4b, openSUSE-SU-2019:1923-1, openSUSE-SU-2019:1924-1, RHSA-2020:1016-01, RHSA-2020:3019-01, SSA:2019-226-01, SUSE-SU-2019:2068-1, SUSE-SU-2019:2069-1, SUSE-SU-2019:2070-1, SUSE-SU-2019:2071-1, SUSE-SU-2019:2072-1, SUSE-SU-2019:2073-1, SUSE-SU-2019:2262-1, SUSE-SU-2019:2263-1, SUSE-SU-2019:2430-1, SUSE-SU-2019:2450-1, USN-4114-1, USN-4115-1, USN-4115-2, USN-4116-1, VIGILANCE-VUL-29846.

Description of the vulnerability 

An attacker can trigger a fatal error via Powerpc Hardware Transactional Memory 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 Debian, Fedora, Linux, openSUSE Leap, RHEL, Slackware, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

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 document.

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

Solutions for this threat 

Linux kernel: version 5.2.5.
The version 5.2.5 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 4.19.63.
The version 4.19.63 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.14.135.
The version 4.14.135 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.9.187.
The version 4.9.187 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.4.187.
The version 4.4.187 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 3.16.72.
The version 3.16.72 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v3.x/

Linux kernel: patch for Powerpc Hardware Transactional Memory.
A patch is indicated in information sources.

Debian 10: new linux packages.
New packages are available:
  Debian 10: linux 4.19.37-5+deb10u2

Debian 8: new linux-4.9 packages.
New packages are available:
  Debian 8: linux-4.9 4.9.168-1+deb9u5~deb8u1

Debian 9/10: new linux packages.
New packages are available:
  Debian 9: linux 4.9.168-1+deb9u5
  Debian 10: linux 4.19.37-5+deb10u2

Fedora 30: new kernel-headers packages.
New packages are available:
  Fedora 30: kernel-headers 5.2.5-200.fc30

Fedora 30: new kernel packages.
New packages are available:
  Fedora 30: kernel 5.2.5-200.fc30

Fedora 30: new kernel-tools packages.
New packages are available:
  Fedora 30: kernel-tools 5.2.5-200.fc30

openSUSE Leap: new kernel packages.
New packages are available:
  openSUSE Leap 15.0: kernel 4.12.14-lp150.12.70.1
  openSUSE Leap 15.1: kernel 4.12.14-lp151.28.13.1

RHEL 7.7: new kernel packages.
New packages are available:
  RHEL 7.7: kernel 3.10.0-1062.30.1.el7

RHEL 7: new kernel packages (01/04/2020).
New packages are available:
  RHEL 7.0-7.7: kernel 3.10.0-1127.el7

Slackware 14.2: new kernel packages.
New packages are available:
  Slackware 14.2: kernel 4.4.189-*-1

SUSE LE 12 SP1: new kernel packages.
New packages are available:
  SUSE LE 12 SP1: kernel 3.12.74-60.64.121.1

SUSE LE 12 SP3: new kernel packages.
New packages are available:
  SUSE LE 12 SP3: kernel 4.4.180-94.103.1

SUSE LE 12 SP4: new kernel-azure packages.
New packages are available:
  SUSE LE 12 SP4: kernel-azure 4.12.14-6.23.1

SUSE LE 12 SP4: new kernel packages.
New packages are available:
  SUSE LE 12 SP4: kernel 4.12.14-95.29.1

SUSE LE 12 SP4: new kernel-rt packages.
New packages are available:
  SUSE LE 12 SP4: kernel-rt 4.12.14-8.3.1

SUSE LE 15 RTM: new kernel packages.
New packages are available:
  SUSE LE 15 RTM: kernel 4.12.14-150.32.1

SUSE LE 15 SP1: new kernel-azure packages.
New packages are available:
  SUSE LE 15 SP1: kernel-azure 4.12.14-5.38.1

SUSE LE 15 SP1: new kernel packages.
New packages are available:
  SUSE LE 15 SP1: kernel 4.12.14-197.15.1

SUSE LE 15 SP1: new kernel-source-rt packages.
New packages are available:
  SUSE LE 15 SP1: kernel-source-rt 4.12.14-14.8.1

Ubuntu 16.04: new linux-image-4.4.0 packages.
New packages are available:
  Ubuntu 16.04 LTS: linux-image-generic 4.4.0.161.169

Ubuntu: new linux-image-4.15.0 packages.
New packages are available:
  Ubuntu 16.04 LTS: linux-image-generic-hwe-16.04 4.15.0.62.82
  Ubuntu 18.04 LTS: linux-image-generic 4.15.0.62.64

Ubuntu: new linux-image-5.0.0 packages.
New packages are available:
  Ubuntu 18.04 LTS: linux-image-generic-hwe-18.04 5.0.0.27.84
  Ubuntu 19.04: linux-image-generic 5.0.0.27.28
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