漏洞信息
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Vulnerability Title
OP-TEE OS 4.10.0 Buffer Underwrite via RSA NOPAD Encrypt/Decrypt Operations
Vulnerability Description
OP-TEE OS through 4.10.0, fixed in commit 7b8b494, contains a buffer underwrite vulnerability in the RSA NOPAD encrypt and decrypt operations within the mbedTLS software backend and SE050 hardware driver that allows a malicious Trusted Application to corrupt secure-world heap memory by supplying an input length exceeding the RSA modulus size. When src_len exceeds rsa_len, the subtraction expression wraps to a large unsigned value, causing a subsequent memcpy to write attacker-controlled data before the destination buffer in S-EL1 secure-world heap memory.
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Vulnerability Type
跨界内存写
Vulnerability Title
OP-TEE Trusted OS 缓冲区错误漏洞
Vulnerability Description
OP-TEE Trusted OS是OP-TEE组织的一款可信执行环境操作系统。 OP-TEE Trusted OS 4.10.0及之前版本存在缓冲区错误漏洞,该漏洞源于mbedTLS软件后端和SE050硬件驱动中RSA NOPAD加密和解密操作存在的缓冲区下溢问题,当输入长度超过RSA模数大小时,减法表达式回绕导致memcpy在目标缓冲区之前写入攻击者控制的数据,可能允许恶意Trusted Application破坏安全世界堆内存。
CVSS Information
N/A
Vulnerability Type
N/A