CVE-2020-28974

Published: Nov 20, 2020 Last Modified: Nov 21, 2024 EU-VD ID: EUVD-2020-21358 Aliases: GSD-2020-28974
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,0
Source: [email protected]
Attack Vector: physical
Attack Complexity: low
Privileges Required: high
User Interaction: none
Scope: unchanged
Confidentiality: low
Integrity: low
Availability: high
MEDIUM 6,1
Source: [email protected]
Access Vector: local
Access Complexity: low
Authentication: none
Confidentiality: partial
Integrity: partial
Availability: complete

Description

AI Translation Available

A slab-out-of-bounds read in fbcon in the Linux kernel before 5.9.7 could be used by local attackers to read privileged information or potentially crash the kernel, aka CID-3c4e0dff2095. This occurs because KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for manipulations such as font height.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0006
Percentile
0,2th
Updated

EPSS Score Trend (Last 90 Days)

125

Out-of-bounds Read

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Availability Other
Potential Impacts:
Read Memory Bypass Protection Mechanism Dos: Crash, Exit, Or Restart Varies By Context
Applicable Platforms
Languages: C, C++, Memory-Unsafe
Technologies: ICS/OT
View CWE Details
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
To 5.9.7 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Debian Linux by Debian

Product Information
Vendor Debian
Product Debian Linux
Version 9.0
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.7
Release Notes Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.7
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/li…
Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3…
https://lists.debian.org/debian-lts-announce/2020/12/msg000…
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
https://lists.debian.org/debian-lts-announce/2020/12/msg000…
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html
https://seclists.org/oss-sec/2020/q4/104
Exploit Mailing List Third Party Advisory
https://seclists.org/oss-sec/2020/q4/104
https://security.netapp.com/advisory/ntap-20210108-0003/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210108-0003/
http://www.openwall.com/lists/oss-security/2020/11/25/1
Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/11/25/1
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.7
Release Notes Vendor Advisory
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.9.7
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/li…
Patch Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3…
https://lists.debian.org/debian-lts-announce/2020/12/msg000…
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
https://lists.debian.org/debian-lts-announce/2020/12/msg000…
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html
https://seclists.org/oss-sec/2020/q4/104
Exploit Mailing List Third Party Advisory
https://seclists.org/oss-sec/2020/q4/104
https://security.netapp.com/advisory/ntap-20210108-0003/
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210108-0003/
http://www.openwall.com/lists/oss-security/2020/11/25/1
Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/11/25/1