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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.

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SheerDNS directory traversal

Vulnerability Assessment Summary Acertains if the remote DNS server handles malformed names Detailed Explanation for this Vulnerability Assessment The remote server seems to be running SheerDNS 1.0.0 or older. This version is vulnerable to several flaws permiting : - A remote attacker to read certain files with predefined names (A, PTR, CNAME, ...) - A local attacker to read the first line of arbitrary files with the rights of the DNS server (typically root) - A local attacker to execute arbitrary code through a buffer overflow Solution : Upgrade to SheerDNS 1.0.1 or disable this service Network Security Threat Level: Low (remotely) / High (locally) Networks Security ID: 7335, 7336 Vulnerability Assessment Copyright: This script is Copyright (C) 2003 Renaud Deraison

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