CVE-2026-33317
HighCVSS 8.7Exploitation Probability (EPSS)
Low risk8th percentile - higher than 8% of all known CVEs
Summary
OP-TEE to środowisko zaufane (TEE) zaprojektowane jako towarzysz dla niezabezpieczonego jądra Linux działającego na rdzeniach Arm Cortex-A. W wersjach od 3.13.0 do 4.10.0 brak odpowiednich sprawdzeń w funkcji `entry_get_attribute_value()` może prowadzić do odczytu poza granicami pamięci z sterty PKCS#11 TA lub do awarii.
Risk Assessment
Organizacja może być narażona na ataki, które wykorzystują luki do nieautoryzowanego dostępu do danych lub destabilizacji systemu. Potencjalne odczyty poza granicami pamięci mogą prowadzić do wycieków danych lub awarii aplikacji.
Recommendation
Zaleca się aktualizację do wersji 4.11.0 lub nowszej, która zawiera poprawki dla opisanych luk. Należy również przeprowadzić audyt bezpieczeństwa aplikacji korzystających z OP-TEE.
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Original NVD description (English source)
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. In versions 3.13.0 through 4.10.0, missing checks in `entry_get_attribute_value()` in `ta/pkcs11/src/object.c` can lead to out-of-bounds read from the PKCS#11 TA heap or a crash. When chained with the OOB read, the PKCS#11 TA function `PKCS11_CMD_GET_ATTRIBUTE_VALUE` or `entry_get_attribute_value()` can, with a bad template parameter, be tricked into reading at most 7 bytes beyond the end of the template buffer and writing beyond the end of the template buffer with the content of an attribute value of a PKCS#11 object. Commits e031c4e562023fd9f199e39fd2e85797e4cbdca9, 16926d5a46934c46e6656246b4fc18385a246900, and 149e8d7ecc4ef8bb00ab4a37fd2ccede6d79e1ca contain patches and are anticipated to be part of version 4.11.0.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

