CVE Database›Document archive›CVE-2020-14390

CVE-2020-14390

kernel: out-of-bounds write in fbcon_redraw_softback

Loading…

Severity

Low

Red Hat Product Security

5.7

CVSS 3.1

Review impact separately from score.

Published · September 15, 2020

Updated · October 9, 2026

Description

A flaw was found in the Linux kernel. When changing screen size, an out-of-bounds memory write can occur leading to memory corruption or a denial of service. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.

Statement

Due to this flaw requiring a local user to trigger by using frame buffer fbcon, the impact has been rated as Low.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 5.7
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N

CWE-787 · Out-of-bounds Write