Memory disclosure via unchecked logging SVC arguments
Published Sep 5, 2024 · Updated Mar 25, 2025
Information disclosure in Trusted Firmware-M 2.0.0 and earlier allows attackers in an ARoT partition to expose secure memory via debug logging. The privileged SVC handler accepts an attacker-controlled memory pointer and length, then prints the referenced bytes to the stdio device without validating the range. Reachability requires IPC mode, PSA isolation level 2 or higher, and TFM_SP_LOG_RAW_ENABLED; disclosure is limited to memory observable on stdout, usually UART.
Summary
What happened
Information disclosure in Trusted Firmware-M 2.0.0 and earlier allows attackers in an ARoT partition to expose secure memory via debug logging. The privileged SVC handler accepts an attacker-controlled memory pointer and length, then prints the referenced bytes to the stdio device without validating the range. Reachability requires IPC mode, PSA isolation level 2 or higher, and TFM_SP_LOG_RAW_ENABLED; disclosure is limited to memory observable on stdout, usually UART.
The record
- CVE
- CVE-2023-51712
- Published
- Sep 5, 2024
- Updated
- Mar 25, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- Unavailable
- Attack vector
- physical
- Privileges
- Unavailable
Timeline
How it unfolded
- Sep 5, 2024CVE publishedPublication date reported by the CVE source.
- Mar 25, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
No sourced classifications are available.
Public exploit references
- TFMV-7 alternative Supervisor-call demonstrationproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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