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A denial of service vulnerability exists in curl <v8.1.0 in the way libcurl provides several different backends for resolving host names, selected at build time. If it is built to use the synchronous resolver, it allows name resolves to time-out slow operations using `alarm()` and `siglongjmp()`. When doing this, libcurl used a global buffer that was not mutex protected and a multi-threaded application might therefore crash or otherwise misbehave.

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未加控制的资源消耗(资源穷尽)

libcurl 资源管理错误漏洞

libcurl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。 libcurl 存在安全漏洞，该漏洞源于允许名称解析使用 alarm()和siglongjmp()使操作超时，导致应用程序崩溃。

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