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: NULL pointer dereference via tw5864_handle_frame

Synthesis of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via tw5864_handle_frame() of the Linux kernel, in order to trigger a denial of service.
Vulnerable software: Debian, Linux, openSUSE Leap, SLES.
Severity of this announce: 1/4.
Creation date: 10/06/2020.
Références of this computer vulnerability: CERTFR-2020-AVI-368, CERTFR-2020-AVI-376, CVE-2019-20806, DLA-2242-1, DSA-4698-1, openSUSE-SU-2020:0801-1, SUSE-SU-2020:1599-1, VIGILANCE-VUL-32503.

Description of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via tw5864_handle_frame() of the Linux kernel, in order to trigger a denial of service.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This computer vulnerability note impacts software or systems such as Debian, Linux, openSUSE Leap, SLES.

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

Solutions for this threat 

Linux kernel: patch for tw5864_handle_frame.
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+deb9u1~deb8u1

Debian 9: new linux packages.
New packages are available:
  Debian 9: linux 4.9.210-1+deb9u1

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 SP1: new kernel packages.
New packages are available:
  SUSE LE 15 SP1: kernel 4.12.14-197.45.1
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

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