CVE-2022-47549

State: Published
Severity: 6.4 Medium
Published: Dec 19, 2022
Updated: Apr 17, 2025
Reserved: Dec 19, 2022

Description

An unprotected memory-access operation in optee_os in TrustedFirmware Open Portable Trusted Execution Environment (OP-TEE) before 3.20 allows a physically proximate adversary to bypass signature verification and install malicious trusted applications via electromagnetic fault injections.

Scores

CVSS	Score	Vector	Source
3.1	6.4 Medium	CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-347 Improper Verification of Cryptographic Signature

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://github.com/OP-TEE/optee_os/security/advisories/GHSA-r64m-h886-hw6g
https://people.linaro.org/~joakim.bech/reports/Breaking_cross-world_isolation_on_ARM_TrustZone_through_EM_faults_coredumps_and_UUID_confusion.pdf

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