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Vulnerability of Linux kernel: information disclosure via kvaser_usb_leaf.c

Synthesis of the vulnerability 

A local attacker can read a memory fragment via kvaser_usb_leaf.c of the Linux kernel, in order to obtain sensitive information.
Impacted software: Debian, Linux, Ubuntu.
Severity of this computer vulnerability: 1/4.
Creation date: 30/12/2019.
Références of this announce: CERTFR-2020-AVI-096, CERTFR-2020-AVI-123, CERTFR-2020-AVI-460, CVE-2019-19947, DLA-2068-1, DLA-2114-1, USN-4284-1, USN-4285-1, USN-4427-1, VIGILANCE-VUL-31240.

Description of the vulnerability 

A local attacker can read a memory fragment via kvaser_usb_leaf.c of the Linux kernel, in order to obtain sensitive information.
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This vulnerability alert impacts software or systems such as Debian, Linux, Ubuntu.

Our Vigil@nce team determined that the severity of this computer weakness 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 computer vulnerability.

Solutions for this threat 

Linux kernel: version 5.4.7.
The version 5.4.7 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 4.19.92.
The version 4.19.92 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.14.185.
The version 4.14.185 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.9.228.
The version 4.9.228 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.4.228.
The version 4.4.228 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 3.16.81.
The version 3.16.81 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v3.x/

Linux kernel: patch for kvaser_usb_leaf.c.
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

Debian 8: new linux packages.
New packages are available:
  Debian 8: linux 3.16.81-1

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-4.4.0 packages.
New packages are available:
  Ubuntu 14.04 ESM: linux-image-generic-lts-xenial 4.4.0.186.163
  Ubuntu 16.04 LTS: linux-image-generic 4.4.0.186.192

Ubuntu: new linux-image-5.3.0 packages (19/02/2020).
New packages are available:
  Ubuntu 19.10: linux-image-generic 5.3.0.40.34
  Ubuntu 18.04 LTS: linux-image-generic-hwe-18.04 5.3.0.40.97

Wind River Linux: version 10.19.45.4.
The version 10.19.45.4 is fixed:
  https://support2.windriver.com/
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