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Vulnerability Assessment Details

BIND vulnerable to DNS storm

Vulnerability Assessment Summary
Checks the remote BIND version

Detailed Explanation for this Vulnerability Assessment

This is associated with three different vulnerabilities.

1) The remote BIND server, based on its version number, if running
recursive DNS functionality, is vulnerable to a buffer overflow.

2) The remote BIND server is vulnerable to a denial of service (crash)
via SIG RR elements with invalid expiry times.

3) The remote BIND server is vulnerable to a denial of service.
When a DNS lookup is requested on a non-existent sub-domain of
a valid domain and an OPT resource record with a large UDP
payload is attached, the server may fail.

Solution : upgrade to at least bind 8.3.4
Network Security Threat Level: High

Networks Security ID: 6159, 6160, 6161

Vulnerability Assessment Copyright: This script is Copyright (C) 2002 Renaud Deraison

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