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Vulnerability of Linux kernel: out-of-bounds memory reading via ath6kl_wmi_pstream_timeout_event_rx

Synthesis of the vulnerability 

An attacker can force a read at an invalid address via ath6kl_wmi_pstream_timeout_event_rx() of the Linux kernel, in order to trigger a denial of service, or to obtain sensitive information.
Impacted products: Debian, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this bulletin: 2/4.
Creation date: 16/09/2019.
Références of this threat: CERTFR-2019-AVI-455, CERTFR-2019-AVI-478, CERTFR-2019-AVI-482, CERTFR-2019-AVI-502, CERTFR-2019-AVI-503, CERTFR-2019-AVI-530, CERTFR-2019-AVI-561, CERTFR-2019-AVI-575, CVE-2019-15926, DLA-1919-1, DLA-1919-2, DLA-1930-1, openSUSE-SU-2019:2173-1, openSUSE-SU-2019:2181-1, SUSE-SU-2019:2412-1, SUSE-SU-2019:2424-1, SUSE-SU-2019:2648-1, SUSE-SU-2019:2651-1, SUSE-SU-2019:2658-1, SUSE-SU-2019:2738-1, SUSE-SU-2019:2949-1, SUSE-SU-2019:2950-1, SUSE-SU-2019:2984-1, USN-4145-1, USN-4147-1, VIGILANCE-VUL-30333.

Description of the vulnerability 

An attacker can force a read at an invalid address via ath6kl_wmi_pstream_timeout_event_rx() of the Linux kernel, in order to trigger a denial of service, or to obtain sensitive information.
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This vulnerability note impacts software or systems such as Debian, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

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

Solutions for this threat 

Linux kernel: version 5.2.3.
The version 5.2.3 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 5.1.20.
The version 5.1.20 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 4.19.61.
The version 4.19.61 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 3.16.74.
The version 3.16.74 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v3.x/linux-3.16.74.tar.xz

Linux kernel: patch for ath6kl_wmi_pstream_timeout_event_rx.
A patch is indicated in information sources.

Debian 8: new linux-4.9 packages.
New packages are available:
  Debian 8: linux-4.9 4.9.189-3~deb8u1

Debian 8: new linux packages.
New packages are available:
  Debian 8: linux 3.16.74-1

openSUSE Leap 15: new kernel packages.
New packages are available:
  openSUSE Leap 15.0: kernel 4.12.14-lp150.12.73.1
  openSUSE Leap 15.1: kernel 4.12.14-lp151.28.16.1

SUSE LE 12 SP1: new kernel packages (13/11/2019).
New packages are available:
  SUSE LE 12 SP1: kernel 3.12.74-60.64.124.1

SUSE LE 12 SP2: new kernel packages.
New packages are available:
  SUSE LE 12 SP2: kernel 4.4.121-92.125.1

SUSE LE 12 SP3: new kernel packages (13/11/2019).
New packages are available:
  SUSE LE 12 SP3: kernel 4.4.180-94.107.1

SUSE LE 12 SP4: new kernel-azure packages.
New packages are available:
  SUSE LE 12 SP4: kernel-azure 4.12.14-6.26.1

SUSE LE 12 SP4: new kernel-default packages.
New packages are available:
  SUSE LE 12 SP4: kernel-default 4.12.14-95.32.1

SUSE LE 15: new kernel-azure packages.
New packages are available:
  SUSE LE 15 RTM: kernel-azure 4.12.14-5.41.1
  SUSE LE 15 SP1: kernel-azure 4.12.14-8.16.1

SUSE LE 15 SP1: new kernel-default packages.
New packages are available:
  SUSE LE 15 SP1: kernel-default 4.12.14-197.18.1

SUSE LE 15 SP1: new kernel-rt packages.
New packages are available:
  SUSE LE 15 SP1: kernel-rt 4.12.14-14.11.1

Ubuntu: new linux-image-4.4.0 packages.
New packages are available:
  Ubuntu 16.04 LTS: linux-image-generic 4.4.0.165.173

Ubuntu: new linux-image-5.0.0 packages.
New packages are available:
  Ubuntu 19.04: linux-image-generic 5.0.0.31.32
  Ubuntu 18.04 LTS: linux-image-generic-hwe-18.04 5.0.0.31.88

Wind River Linux: version 10.18.44.11.
The version 10.18.44.11 is fixed:
  https://support2.windriver.com/
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