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DEBIAN-CVE-2022-2503

DEBIAN-CVE-2022-2503 PUBLISHED CVSS 6.699999809265137 MEDIUM

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

Risk Scores

CVSS 3.1
6.699999809265137
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected Products

VendorProductVersions
Debian:12linux0, 0, 0
Debian:13linux0, 0, 0
Debian:14linux0, 0, 0
Debian:11linux5.10.70-1, 5.10.70-1, 5.10.84-1

Timeline

  • Aug 12, 2022 CVE Published
  • Apr 28, 2026 CVE Updated
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