Heap buffer overflow in session parsing with wolfSSL_d2i_SSL_SESSION() function

A heap-buffer-overflow vulnerability exists in wolfSSL's wolfSSL_d2i_SSL_SESSION() function. When deserializing session data with SESSION_CERTS enabled, certificate and session id lengths are read from an untrusted input without bounds validation, allowing an attacker to overflow fixed-size buffers and corrupt heap memory. A maliciously crafted session would need to be loaded from an external source to trigger this vulnerability. Internal sessions were not vulnerable.

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堆缓冲区溢出

wolfSSL 安全漏洞

wolfSSL（CyaSSL）是美国wolfSSL公司的一个针对嵌入式系统开发人员使用的小的、可移植的嵌入式SSL编程库。 wolfSSL存在安全漏洞，该漏洞源于wolfSSL_d2i_SSL_SESSION函数存在堆缓冲区溢出，当反序列化启用了SESSION_CERTS的会话数据时，可能导致攻击者溢出固定大小的缓冲区并损坏堆内存。

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