File Descriptor Reuse Vulnerability in GNU C Library's send_dg Function

CVE-2013-7423 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:P/A:N

The send_dg function in resolv/res_send.c in GNU C Library (aka glibc or libc6) before 2.20 does not properly reuse file descriptors, which allows remote attackers to send DNS queries to unintended locations via a large number of requests that trigger a call to the getaddrinfo function.

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