CVE-2022-42915— curl 资源管理错误漏洞

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curl before 7.86.0 has a double free. If curl is told to use an HTTP proxy for a transfer with a non-HTTP(S) URL, it sets up the connection to the remote server by issuing a CONNECT request to the proxy, and then tunnels the rest of the protocol through. An HTTP proxy might refuse this request (HTTP proxies often only allow outgoing connections to specific port numbers, like 443 for HTTPS) and instead return a non-200 status code to the client. Due to flaws in the error/cleanup handling, this could trigger a double free in curl if one of the following schemes were used in the URL for the transfer: dict, gopher, gophers, ldap, ldaps, rtmp, rtmps, or telnet. The earliest affected version is 7.77.0.

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curl 资源管理错误漏洞

curl是一款用于从服务器传输数据或向服务器传输数据的工具。 curl存在安全漏洞，该漏洞源于错误/清理处理中存在问题，如果使用HTTP代理进行具有非HTTP(S) URL的传输，则会导致双重释放。

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