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PowerDNS Two Denial of Service Vulnerabilities
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Secunia Advisory:
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SA16111
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Release Date:
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2005-07-18
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Last Update:
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2005-07-26
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Popularity:
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6,149 views
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Critical:
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Moderately critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| Software: | PowerDNS 2.x
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| CVE reference: | CVE-2005-2301
CVE-2005-2302
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Description:
Two vulnerabilities have been reported in PowerDNS, which can be exploited by malicious people to cause a DoS (Denial of Service).
1) Queries passed to the LDAP backend are not properly sanitised, which can be exploited to cause the backend to fail and not answer requests.
Successful exploitation requires LDAP backend support.
2) An error in the handling of requests from clients, which are denied recursion, can be exploited to temporarily blank out a domain.
Successful exploitation requires that recursion is provided to a limited range of IP addresses.
The vulnerabilities have been reported in version 2.9.17. Prior versions may also be affected.
Solution:
Update to version 2.9.18.
http://www.powerdns.com/downloads/
Provided and/or discovered by:
The vendor credits:
1) Norbert Sendetzky and Jan de Groot
2) Wilco Baan
Changelog:
2005-07-26: Added CVE reference.
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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