漏洞信息
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Vulnerability Title
c-ares : Use-after-free / double-free in c-ares query-completion handling, remotely triggerable via ares_getaddrinfo() over TCP
Vulnerability Description
c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, a use-after-free / double-free in c-ares' query-completion handling. The same flaw — a query's callback being invoked while the query is still linked in the channel's internal lookup structures — is present at multiple points in the resend/finish path (timeout handling, response handling, and query dispatch). If the query, or for ares_getaddrinfo() the owning host_query, is freed as a side effect of that callback, it is then accessed and/or freed a second time. This vulnerability is fixed in ver 1.34.7.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Type
双重释放
Vulnerability Title
c-ares 资源管理错误漏洞
Vulnerability Description
c-ares是c-ares组织开源的一个用于异步 DNS 请求的 C 库。 c-ares 1.32.3版本至1.34.7之前版本存在资源管理错误漏洞,该漏洞源于查询完成处理中的释放后重用和双重释放问题,可能导致释放后重用或双重释放。
CVSS Information
N/A
Vulnerability Type
N/A