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Vulnerability of Linux kernel: information disclosure via vb2_warn_zero_bytesused

Synthesis of the vulnerability 

A local attacker can read a memory fragment via vb2_warn_zero_bytesused() of the Linux kernel, in order to obtain sensitive information.
Impacted systems: Android OS, Linux, openSUSE Leap, SLES.
Severity of this alert: 1/4.
Creation date: 10/06/2020.
Références of this alert: CERTFR-2020-AVI-376, CVE-2019-9455, openSUSE-SU-2020:0801-1, SUSE-SU-2020:1599-1, SUSE-SU-2020:1663-1, VIGILANCE-VUL-32513.

Description of the vulnerability 

A local attacker can read a memory fragment via vb2_warn_zero_bytesused() of the Linux kernel, in order to obtain sensitive information.
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This weakness announce impacts software or systems such as Android OS, Linux, openSUSE Leap, SLES.

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

Solutions for this threat 

Linux kernel: patch for vb2_warn_zero_bytesused.
A patch is indicated in information sources.

Google Android OS: patch 2019-09-05.
A 2019-09-05 patch is indicated in information sources.

openSUSE Leap 15.1: new kernel packages.
New packages are available:
  openSUSE Leap 15.1: kernel 4.12.14-lp151.28.52.1

SUSE LE 15: new kernel packages.
New packages are available:
  SUSE LE 15 RTM: kernel 4.12.14-150.52.1

SUSE LE 15 SP1: new kernel packages.
New packages are available:
  SUSE LE 15 SP1: kernel 4.12.14-197.45.1
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