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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: mitre
Published: 2019-04-04T19:13:46
Updated: 2024-08-05T11:01:14.911Z
Reserved: 2018-10-08T00:00:00
Link: CVE-2018-18068
Vulnrichment
No data.
NVD
Status : Modified
Published: 2019-04-04T20:29:00.220
Modified: 2024-11-21T03:55:25.750
Link: CVE-2018-18068
Redhat
No data.