Synthesis of the vulnerability 


An attacker can force a read at an invalid address via nl80211_polic of the Linux kernel, in order to trigger a denial of service, or to obtain sensitive information.
Vulnerable software: Android OS, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.
Severity of this announce: 1/4.
Creation date: 13/01/2021.
Références of this computer vulnerability: CERTFR-2021-AVI-021, CERTFR-2021-AVI-035, CVE-2020-27068, openSUSE-SU-2021:0075-1, SUSE-SU-2021:0094-1, SUSE-SU-2021:0095-1, SUSE-SU-2021:0096-1, SUSE-SU-2021:0097-1, SUSE-SU-2021:0098-1, SUSE-SU-2021:0108-1, SUSE-SU-2021:0117-1, SUSE-SU-2021:0118-1, SUSE-SU-2021:0133-1, VIGILANCE-VUL-34303.

Description of the vulnerability 


An attacker can force a read at an invalid address via nl80211_policy of the Linux kernel, in order to trigger a denial of service, or to obtain sensitive information.
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This computer threat bulletin impacts software or systems such as Android OS, Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.

Our Vigil@nce team determined that the severity of this security threat 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 alert.

Solutions for this threat 


Linux kernel: version 4.9.216.
The version 4.9.216 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.9.216.tar.xz

Linux kernel: version 4.4.216.
The version 4.4.216 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.4.216.tar.xz

Linux kernel: patch for nl80211_policy.
A patch is indicated in information sources.

Google Android/Pixel: patch for December 2020.
A patch is indicated in information sources.

openSUSE Leap 15.1: new kernel packages (18/01/2021).
New packages are available:
  openSUSE Leap 15.1: kernel 4.12.14-lp151.28.91.1

openSUSE Leap 15.2: new kernel packages (15/01/2021).
New packages are available:
  openSUSE Leap 15.2: kernel 5.3.18-lp152.60.1

SUSE LE 12 SP5: new kernel-azure packages (13/01/2021).
New packages are available:
  SUSE LE 12 SP5: kernel-azure 4.12.14-16.41.1

SUSE LE 12 SP5: new kernel packages (15/01/2021).
New packages are available:
  SUSE LE 12 SP5: kernel 4.12.14-122.57.1

SUSE LE 12 SP5: new kernel-rt packages (13/01/2021).
New packages are available:
  SUSE LE 12 SP5: kernel-rt 4.12.14-10.28.3

SUSE LE 15 SP1: new kernel-azure packages (13/01/2021).
New packages are available:
  SUSE LE 15 SP1: kernel-azure 4.12.14-8.58.1

SUSE LE 15 SP1: new kernel packages (14/01/2021).
New packages are available:
  SUSE LE 15 SP1: kernel 4.12.14-197.78.1

SUSE LE 15 SP1: new kernel-rt packages (13/01/2021).
New packages are available:
  SUSE LE 15 SP1: kernel-rt 4.12.14-14.47.1

SUSE LE 15 SP2: new kernel-azure packages.
New packages are available:
  SUSE LE 15 SP2: kernel-azure 5.3.18-18.32.1

SUSE LE 15 SP2: new kernel packages (14/01/2021).
New packages are available:
  SUSE LE 15 SP2: kernel 5.3.18-24.46.1

SUSE LE 15 SP2: new kernel-rt packages (13/01/2021).
New packages are available:
  SUSE LE 15 SP2: kernel-rt 5.3.18-22.1
Full bulletin, software filtering, emails, fixes, … (Request your free trial)

Computer vulnerabilities tracking service 


Vigil@nce provides a system vulnerability watch. The Vigil@nce computer vulnerability tracking service alerts your teams of vulnerabilities or threats impacting your information system.





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