The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of Linux kernel: use after free via SLIP / CAN

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via SLIP / CAN of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Vulnerable software: Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.
Severity of this announce: 2/4.
Creation date: 19/06/2020.
Références of this computer vulnerability: CERTFR-2020-AVI-462, CERTFR-2020-AVI-483, CERTFR-2020-AVI-489, CERTFR-2020-AVI-547, CVE-2020-14416, openSUSE-SU-2020:0935-1, openSUSE-SU-2020:1153-1, SUSE-SU-2020:14442-1, SUSE-SU-2020:2027-1, SUSE-SU-2020:2103-1, SUSE-SU-2020:2105-1, SUSE-SU-2020:2106-1, SUSE-SU-2020:2107-1, SUSE-SU-2020:2119-1, SUSE-SU-2020:2121-1, SUSE-SU-2020:2122-1, SUSE-SU-2020:2134-1, SUSE-SU-2020:2152-1, SUSE-SU-2020:2156-1, SUSE-SU-2020:2478-1, SUSE-SU-2020:2487-1, VIGILANCE-VUL-32587.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via SLIP / CAN of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This computer threat bulletin impacts software or systems such as Linux, openSUSE Leap, SUSE Linux Enterprise Desktop, SLES.

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

Solutions for this threat 

Linux kernel: version 5.4.16.
The version 5.4.16 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: version 4.19.100.
The version 4.19.100 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.14.169.
The version 4.14.169 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: patch for SLIP / CAN.
A patch is indicated in information sources.

openSUSE Leap 15.1: new kernel packages (07/08/2020).
New packages are available:
  openSUSE Leap 15.1: kernel 4.12.14-lp151.28.59.1

openSUSE Leap 15.2: new kernel packages.
New packages are available:
  openSUSE Leap 15.2: kernel 5.3.18-lp152.20.7.1

SUSE LE 11 SP4: new kernel packages (04/08/2020).
New packages are available:
  SUSE LE 11 SP4: kernel 3.0.101-108.117.1

SUSE LE 12 SP2: new kernel packages.
New packages are available:
  SUSE LE 12 SP2: kernel 4.4.121-92.138.1

SUSE LE 12 SP3: new kernel packages.
New packages are available:
  SUSE LE 12 SP3: kernel 4.4.180-94.127.1

SUSE LE 12 SP4: new kernel packages.
New packages are available:
  SUSE LE 12 SP4: kernel 4.12.14-95.57.1

SUSE LE 12 SP4: new kernel-rt packages.
New packages are available:
  SUSE LE 12 SP4: kernel-rt 4.12.14-8.23.1

SUSE LE 12 SP5: new kernel-azure packages (05/08/2020).
New packages are available:
  SUSE LE 12 SP5: kernel-azure 4.12.14-16.22.1

SUSE LE 12 SP5: new kernel packages (05/08/2020).
New packages are available:
  SUSE LE 12 SP5: kernel 4.12.14-122.29.1

SUSE LE 12 SP5: new kernel-rt packages (03/09/2020).
New packages are available:
  SUSE LE 12 SP5: kernel-rt 4.12.14-10.13.1

SUSE LE 15 RTM: new kernel packages.
New packages are available:
  SUSE LE 15 RTM: kernel 4.12.14-150.55.1

SUSE LE 15 SP1: new kernel-azure packages.
New packages are available:
  SUSE LE 15 SP1: kernel-azure 4.12.14-8.38.1

SUSE LE 15 SP1: new kernel packages (04/08/2020).
New packages are available:
  SUSE LE 15 SP1: kernel 4.12.14-197.48.1

SUSE LE 15 SP1: new kernel-rt packages.
New packages are available:
  SUSE LE 15 SP1: kernel-rt 4.12.14-14.28.1

SUSE LE 15 SP2: new kernel-azure packages.
New packages are available:
  SUSE LE 15 SP2: kernel-azure 5.3.18-18.5.1

SUSE LE 15 SP2: new kernel packages.
New packages are available:
  SUSE LE 15 SP2: kernel 5.3.18-24.9.1
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides a computer vulnerability announce. Each administrator can customize the list of products for which he wants to receive vulnerability alerts.