CVE-2020-14390
Summary
| CVE | CVE-2020-14390 |
|---|---|
| State | PUBLISHED |
| Assigner | redhat |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2020-09-18 18:15:16 UTC |
| Updated | 2026-10-08 21:17:23 UTC |
| Description | A flaw was found in the Linux kernel in versions before 5.9-rc6. 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. |
Risk And Classification
Primary CVSS: v3.1 5.6 MEDIUM from [email protected]
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
EPSS: 0.003520000 probability, percentile 0.268200000 (date 2026-10-10)
Problem Types: CWE-787 | CWE-787 CWE-787
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 5.6 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H |
| 2.0 | [email protected] | Primary | 4.6 | AV:L/AC:L/Au:N/C:P/I:P/A:P |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
HighUser Interaction
NoneScope
UnchangedConfidentiality
LowIntegrity
LowAvailability
HighCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:H
CVSS v2.0 Breakdown
Access Vector
LocalAccess Complexity
LowAuthentication
NoneConfidentiality
PartialIntegrity
PartialAvailability
PartialAV:L/AC:L/Au:N/C:P/I:P/A:P
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Debian | Debian Linux | 9.0 | All | All | All |
| Operating System | Linux | Linux Kernel | All | All | All | All |
| Operating System | Linux | Linux Kernel | 5.9.0 | - | All | All |
| Operating System | Linux | Linux Kernel | 5.9.0 | rc1 | All | All |
| Operating System | Linux | Linux Kernel | 5.9.0 | rc2 | All | All |
| Operating System | Linux | Linux Kernel | 5.9.0 | rc3 | All | All |
| Operating System | Linux | Linux Kernel | 5.9.0 | rc4 | All | All |
| Operating System | Linux | Linux Kernel | 5.9.0 | rc5 | All | All |
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| [SECURITY] [DLA 2420-2] linux regression update | af854a3a-2127-422b-91ae-364da2661108 | lists.debian.org | |
| [security-announce] openSUSE-SU-2020:1655-1: important: Security update | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| [SECURITY] [DLA 2420-1] linux security update | af854a3a-2127-422b-91ae-364da2661108 | lists.debian.org | |
| [security-announce] openSUSE-SU-2020:1586-1: important: Security update | af854a3a-2127-422b-91ae-364da2661108 | lists.opensuse.org | |
| 1876788 – (CVE-2020-14390) CVE-2020-14390 kernel: out-of-bounds write in fbcon_redraw_softback | af854a3a-2127-422b-91ae-364da2661108 | bugzilla.redhat.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 160123 Oracle Enterprise Linux Security Update for unbreakable enterprise kernel (ELSA-2022-9852)
- 198328 Ubuntu Security Notification for Linux kernel (OEM) vulnerabilities (USN-4912-1)
- 353100 Amazon Linux Security Advisory for kernel : ALAC2012-2021-024
- 353101 Amazon Linux Security Advisory for kmod-mlx5 : ALAC2012-2021-025
- 353102 Amazon Linux Security Advisory for kmod-sfc : ALAC2012-2021-026
- 353135 Amazon Linux Security Advisory for kernel : ALAS2KERNEL-5.4-2022-016
- 390268 Oracle VM Server for x86 Security Update for kernel (OVMSA-2022-0026)
- 6140395 AWS Bottlerocket Security Update for kernel (GHSA-6425-wpg4-f4vj)
- 750376 OpenSUSE Security Update for RT kernel (openSUSE-SU-2021:0242-1)
- 900076 CBL-Mariner Linux Security Update for kernel 5.4.91
- 903298 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (3495)
- 906217 Common Base Linux Mariner (CBL-Mariner) Security Update for kernel (3495-1)