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CVE-2022-2503

MEDIUM

6.9

Descricao

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

Detalhes CVE

Pontuacao CVSS v3.16.9

SeveridadeMEDIUM

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

Vetor de ataqueLOCAL

ComplexidadeHIGH

Privilegios necessariosHIGH

Interacao do usuarioREQUIRED

Publicado8/12/2022

Ultima modificacao11/21/2024

Fontenvd

Avistamentos honeypot0

Produtos afetados

linux:linux_kernel

Fraquezas (CWE)

CWE-302CWE-287

Referencias

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)

Correlacoes IOC

Sem correlacoes registradas

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