Vulnerability Details CVE-2018-18068
The ARM-based hardware debugging feature on Raspberry Pi 3 module B+ and possibly other devices allows non-secure EL1 code to read/write any EL3 (the highest privilege level in ARMv8) memory/register via inter-processor debugging. With a debug host processor A running in non-secure EL1 and a debug target processor B running in any privilege level, the debugging feature allows A to halt B and promote B to any privilege level. As a debug host, A has full control of B even if B owns a higher privilege level than A. Accordingly, A can read/write any EL3 memory/register via B. Also, with this memory access, A can execute arbitrary code in EL3.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.019
EPSS Ranking 82.5%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 10.0
References
Products affected by CVE-2018-18068
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cpe:2.3:h:raspberrypi:raspberry_pi_3_model_b+:-
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cpe:2.3:o:raspberrypi:raspberry_pi_3_model_b+_firmware:-