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Vulnerability of Linux kernel: out-of-bounds memory reading via fbcon_copy_font

Synthesis of the vulnerability 

An attacker can force a read at an invalid address via fbcon_copy_font() of the Linux kernel, in order to trigger a denial of service, or to obtain sensitive information.
Vulnerable systems: Linux.
Severity of this threat: 2/4.
Creation date: 09/11/2020.
Références of this weakness: CVE-2020-28974, VIGILANCE-VUL-33854.

Description of the vulnerability 

An attacker can force a read at an invalid address via fbcon_copy_font() of the ...
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This security alert impacts software or systems such as Linux.

Our Vigil@nce team determined that the severity of this security weakness is medium.

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 security announce.

Solutions for this threat 

This vulnerability solution will be public soon.
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