OP-TEE Trusted OS is the secure side implementation of OP-TEE project, a Trusted Execution Environment. Versions prior to 3.19.0, contain an Improper Validation of Array Index vulnerability. The function `cleanup_shm_refs()` is called by both `entry_invoke_command()` and `entry_open_session()`. The commands `OPTEE_MSG_CMD_OPEN_SESSION` and `OPTEE_MSG_CMD_INVOKE_COMMAND` can be executed from the normal world via an OP-TEE SMC. This function is not validating the `num_params` argument, which is only limited to `OPTEE_MSG_MAX_NUM_PARAMS` (127) in the function `get_cmd_buffer()`. Therefore, an attacker in the normal world can craft an SMC call that will cause out-of-bounds reading in `cleanup_shm_refs` and potentially freeing of fake-objects in the function `mobj_put()`. A normal-world attacker with permission to execute SMC instructions may exploit this flaw. Maintainers believe this problem permits local privilege escalation from the normal world to the secure world. Version 3.19.0 contains a fix for this issue. There are no known workarounds.
Metrics
Affected Vendors & Products
References
History
Fri, 05 Jun 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Trustedfirmware
Trustedfirmware op-tee |
|
| CPEs | cpe:2.3:o:trustedfirmware:op-tee:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Op-tee
Op-tee op-tee Os |
Trustedfirmware
Trustedfirmware op-tee |
Tue, 22 Apr 2025 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Status: PUBLISHED
Assigner: GitHub_M
Published: 2022-11-29T00:00:00.000Z
Updated: 2025-04-22T15:59:11.617Z
Reserved: 2022-11-28T00:00:00.000Z
Link: CVE-2022-46152
Updated: 2024-08-03T14:24:03.271Z
Status : Analyzed
Published: 2022-11-29T17:15:11.453
Modified: 2026-06-05T20:23:06.630
Link: CVE-2022-46152
No data.