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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

Details CVE

Score CVSS v3.16.9

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N

Vecteur d'attaqueLOCAL

ComplexiteHIGH

Privileges requisHIGH

Interaction utilisateurREQUIRED

Publie8/12/2022

Derniere modification11/21/2024

Sourcenvd

Observations honeypot0

Produits affectes

linux:linux_kernel

Faiblesses (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)

Correlations IOC

Aucune correlation enregistree

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