Vulnerability · Published Oct 19, 2023 · Assigned by NCSC-NL

CVE-2022-25333Flawed SK_LOAD module authenticity check in Texas Instruments OMAP L138

High 8.2

In plain English

A high-severity security flaw in OMAP from Texas Instruments. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 3% of all known vulnerabilities).

Severity (CVSS 3.1)8.2High

Exploit odds (30 days)0.1%top 96.7% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

The Texas Instruments OMAP L138 (secure variants) trusted execution environment (TEE) performs an RSA check implemented in mask ROM when loading a module through the SK_LOAD routine. However, only the module header authenticity is validated. An adversary can re-use any correctly signed header and append a forged payload, to be encrypted using the CEK (obtainable through CVE-2022-25332) in order to obtain arbitrary code execution in secure context. This constitutes a full break of the TEE security architecture.

Affected products (as reported)

Vendor	Product	Versions
Texas Instruments	OMAP	L138

Weakness: CWE-347 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:F/RL:U/RC:C/CR:H/IR:H/AR:H/MAV:L/MAC:L/MPR:H/MUI:N/MS:C/MC:H/MI:H/MA:H

References

TETRA:BURST related