Vulnerability Information
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Vulnerability Title
N/A
Vulnerability Description
An issue was discovered in wolfSSL before 5.5.0 (when --enable-session-ticket is used); however, only version 5.3.0 is exploitable. Man-in-the-middle attackers or a malicious server can crash TLS 1.2 clients during a handshake. If an attacker injects a large ticket (more than 256 bytes) into a NewSessionTicket message in a TLS 1.2 handshake, and the client has a non-empty session cache, the session cache frees a pointer that points to unallocated memory, causing the client to crash with a "free(): invalid pointer" message. NOTE: It is likely that this is also exploitable during TLS 1.3 handshakes between a client and a malicious server. With TLS 1.3, it is not possible to exploit this as a man-in-the-middle.
CVSS Information
N/A
Vulnerability Type
N/A
Vulnerability Title
Wolfssl 安全漏洞
Vulnerability Description
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 5.5.0之前版本存在安全漏洞，该漏洞源于中间人攻击者或恶意服务器可以在握手期间使TLS 1.2客户端崩溃，如果攻击者在TLS 1.2握手中将大的票据（超过 256 字节）注入到NewSessionTicket消息中，并且客户端具有非空会话缓存，则会话缓存会释放指向未分配内存的指针，导致客户端崩溃，出现“free(): invalid pointer”消息。
CVSS Information
N/A
Vulnerability Type
N/A