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PowerDNS Recursor Two Vulnerabilities
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Secunia Advisory:
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SA22824
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Release Date:
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2006-11-13
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Popularity:
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6,386 views
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Critical:
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Highly critical
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Impact:
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DoS
System access
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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
PowerDNS Recursor 3.x
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Subscribe:
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Instant alerts on relevant vulnerabilities 
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| CVE reference: | CVE-2006-4251
CVE-2006-4252
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Description:
Two vulnerabilities have been reported in PowerDNS Recursor, which can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.
1) An error in length calculation when handling TCP DNS queries can be exploited to cause an overly large copy via a specially crafted packet.
Successful exploitation may allow execution of arbitrary code.
2) An error in the handling CNAME records can be exploited to crash the service.
The vulnerabilities are reported in PowerDNS Recursor versions 3.1.3 and prior. PowerDNS Authoritative Server (pdns_server) is not affected.
Solution:
Update to PowerDNS Recursor 3.1.4.
Provided and/or discovered by:
Reported by the vendor.
Original Advisory:
http://doc.powerdns.com/powerdns-advisory-2006-01.html
http://doc.powerdns.com/powerdns-advisory-2006-02.html
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About this Secunia Advisory
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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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