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 spk_ttyio_ldisc_close

Synthesis of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via spk_ttyio_ldisc_close of the Linux kernel, in order to trigger a denial of service.
Vulnerable software: Fedora, Linux.
Severity of this announce: 1/4.
Creation date: 19/11/2020.
Références of this computer vulnerability: CVE-2020-28941, FEDORA-2020-4700a73bd5, FEDORA-2020-8c15928d23, VIGILANCE-VUL-33931.

Description of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via spk_ttyio_ldisc_clos...
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This security note impacts software or systems such as Fedora, Linux.

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

The trust level is of type confirmed by the editor, with an origin of user shell.

A proof of concept or an attack tool is available, so your teams have to process this alert. An attacker with a technician ability can exploit this computer weakness announce.

Solutions for this threat 

Solutions for this vulnerability are not yet public.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

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