CVE-2026-41514OP-TEE: RSA-OAEP padding oracle in Hisilicon HPRE driver enables plaintext recovery
Beschreibung
OP-TEE is a Trusted Execution Environment (TEE) designed as companion to a non-secure Linux kernel running on Arm; Cortex-A cores using the TrustZone technology. Starting in version 4.5.0 and prior to version 4.11.0, the RSA-OAEP decryption implementation in the Hisilicon HPRE crypto driver uses non-constant-time `memcmp()` for label hash verification and has multiple distinguishable error paths. This creates a Manger-style padding oracle that allows an attacker to recover RSA-OAEP plaintext with approximately 1000-2000 adaptive chosen ciphertext queries. Only affects plat-d06 with `CFG_HISILICON_ACC_V3=y`, which seems to be disabled by default. Version 4.11.0 contains a patch. As a workaround, disable Hisilicon HPRE RSA driver with `CFG_HISILICON_ACC_V3=n`.
Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.
Betroffene Produkte und Versionen
| Hersteller | Produkt | Versionen | |
|---|---|---|---|
| OP-TEE | optee_os | >= 4.5.0, < 4.11.0 | |
| trustedfirmware | op-tee | 4.5.0 – ≤ 4.10.0 |
Referenzen und Patches
- https://github.com/OP-TEE/optee_os/security/advisories/GHSA-qw4r-9wj9-q23r Vendor AdvisoryMitigationPatch
CPE-Treffer (NVD) (1)
cpe:2.3:o:trustedfirmware:op-tee:*:*:*:*:*:*:*:*≥ 4.5.0 ≤ 4.10.0