K16841 : GNU C Library (glibc) vulnerability CVE-2013-7423

Security Advisory Description

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 request that trigger a call to the getaddrinfo function. (CVE-2013-7423)

Impact

This vulnerability can only be exploited in F5 products by locally authenticated users. An attacker may be able to send DNS queries to unintended recipients, resulting in information disclosure or data loss due to the application encountering corrupted data. No remote vulnerabilities are known.