CVE-2023-3724— wolfSSL 信任管理问题漏洞

TLS 1.3 client issue handling malicious server when not including a KSE and PSK extension

If a TLS 1.3 client gets neither a PSK (pre shared key) extension nor a KSE (key share extension) when connecting to a malicious server, a default predictable buffer gets used for the IKM (Input Keying Material) value when generating the session master secret. Using a potentially known IKM value when generating the session master secret key compromises the key generated, allowing an eavesdropper to reconstruct it and potentially allowing access to or meddling with message contents in the session. This issue does not affect client validation of connected servers, nor expose private key information, but could result in an insecure TLS 1.3 session when not controlling both sides of the connection. wolfSSL recommends that TLS 1.3 client side users update the version of wolfSSL used. 

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

输入验证不恰当

wolfSSL 信任管理问题漏洞

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 5.6.2之前版本存在安全漏洞，该漏洞源于TLS 1.3会话存在安全问题，允许窃听者重建会话并秘密访问或干预会话中的消息内容。

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