CVE - CVE-2022-46152

CVE-ID
CVE-2022-46152	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
CONFIRM:https://github.com/OP-TEE/optee_os/security/advisories/GHSA-65w8-6mrg-52g7 URL:https://github.com/OP-TEE/optee_os/security/advisories/GHSA-65w8-6mrg-52g7 MISC:https://github.com/OP-TEE/optee_os/blob/c2d449482de098f1c894b94f338440e5a327813d/core/tee/entry_std.c#L257 URL:https://github.com/OP-TEE/optee_os/blob/c2d449482de098f1c894b94f338440e5a327813d/core/tee/entry_std.c#L257 MISC:https://github.com/OP-TEE/optee_os/commit/728616b28df659cf0bdde6e58a471f6ef25d023c URL:https://github.com/OP-TEE/optee_os/commit/728616b28df659cf0bdde6e58a471f6ef25d023c MISC:https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:X/RC:X/CR:M/IR:M/AR:M/MAV:L/MAC:L/MPR:H/MUI:N/MS:C/MC:H/MI:H/MA:H&version=3.1 URL:https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:U/RL:X/RC:X/CR:M/IR:M/AR:M/MAV:L/MAC:L/MPR:H/MUI:N/MS:C/MC:H/MI:H/MA:H&version=3.1
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20221128	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20221128)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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