CVE-2022-2503

CVSS V2 None CVSS V3 Medium 6.7
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
Overview
  • CVE ID
  • CVE-2022-2503
  • Assigner
  • cve-coordination@google.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2022-08-12T11:15:07
  • Last Modified Date
  • 2023-02-14T13:15:10
Weakness Enumerations
CWE URL
CWE-287 http://cwe.mitre.org/data/definitions/287.html
CWE-302 http://cwe.mitre.org/data/definitions/302.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.19
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • HIGH
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 6.7
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 0.8
  • Impact Score
  • 5.9
References
Reference URL Reference Tags
https://github.com/google/security-research/security/advisories/GHSA-6vq3-w69p-w63m Exploit Patch Third Party Advisory
https://security.netapp.com/advisory/ntap-20230214-0005/
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2022-2503
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2503
History
Created Old Value New Value Data Type Notes
2022-08-12 12:00:16 Added to TrackCVE
2023-02-14 15:15:10 2023-02-14T13:15:10 CVE Modified Date updated
2023-02-14 15:15:10 Analyzed Modified Vulnerability Status updated
2023-02-14 15:15:11 Weakness Enumeration update
2023-02-14 15:15:11 References updated