cve-2022-2503
Vulnerability from cvelistv5
Published
2022-08-12 00:00
Modified
2024-08-03 00:39
Severity ?
6.9 (Medium) - CVSS:3.1/AV:L/AC:H/PR:H/UI:R/S:C/C:H/I:H/A:N
Summary
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
References
cve-coordination@google.comhttps://github.com/google/security-research/security/advisories/GHSA-6vq3-w69p-w63mExploit, Patch, Third Party Advisory
cve-coordination@google.comhttps://security.netapp.com/advisory/ntap-20230214-0005/
af854a3a-2127-422b-91ae-364da2661108https://github.com/google/security-research/security/advisories/GHSA-6vq3-w69p-w63mExploit, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20230214-0005/
Impacted products
Vendor Product Version
Show details on NVD website

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