← Back to CVEs

CVE-2022-2503

MEDIUM

6.9

Description

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

CVE Details

CVSS v3.1 Score6.9

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N

Attack VectorLOCAL

ComplexityHIGH

Privileges RequiredHIGH

User InteractionREQUIRED

Published8/12/2022

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

linux:linux_kernel

Weaknesses (CWE)

CWE-302CWE-287

References

https://github.com/google/security-research/security/advisories/GHSA-6vq3-w69p-w63m(cve-coordination@google.com)

https://security.netapp.com/advisory/ntap-20230214-0005/(cve-coordination@google.com)

https://github.com/google/security-research/security/advisories/GHSA-6vq3-w69p-w63m(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20230214-0005/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.