icon

We found results for “

CVE-2022-2503

Good to know:

icon

Date: August 11, 2022

Dm-verity is used for extending root-of-trust to root filesystems. LoadPin builds on this property to restrict module/firmware loads to just the trusted root filesystem. Device-mapper table reloads currently allow users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allows root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates. We recommend upgrading past commit 4caae58406f8ceb741603eee460d79bacca9b1b5

Language: C

Severity Score

Severity Score

Weakness Type (CWE)

Authentication Issues

CWE-287

Authentication Bypass by Assumed-Immutable Data

CWE-302

Top Fix

icon

Upgrade Version

Upgrade to version v4.9.317,v4.14.282,v4.19.246,v5.4.197,v5.10.120,v5.15.45,v5.17.13,v5.18.2

Learn More

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): HIGH
Privileges Required (PR): HIGH
User Interaction (UI): REQUIRED
Scope (S): CHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): NONE

Do you need more information?

Contact Us