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CVE-2022-47549

Date: December 19, 2022

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.

Language: C

Severity Score

Related Resources (4)

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
https://nvd.nist.gov/vuln/detail/CVE-2022-47549
https://www.mend.io/vulnerability-database/CVE-2022-47549

Severity Score

Weakness Type (CWE)

Improper Verification of Cryptographic Signature

CWE-347

CVSS v3.1

Base Score:
Attack Vector (AV): PHYSICAL
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

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