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TITLE:
PowerDNS Recursor Spoofing and Buffer Overflow Vulnerabilities

SECUNIA ADVISORY ID:
SA38004

VERIFY ADVISORY:
http://secunia.com/advisories/38004/

DESCRIPTION:
Some vulnerabilities have been reported in PowerDNS Recursor, which
can be exploited by malicious people to conduct spoofing attacks and
potentially compromise a vulnerable system.

1) An unspecified error exists when handling certain specially
crafted packets, which can be exploited to cause a buffer overflow.

Successful exploitation may allow execution of arbitrary code.

2) An unspecified error exists handling certain specially crafted
zones, which can be exploited to spoof DNS information.

The vulnerabilities are reported in PowerDNS Recursor version 3.1.7.1
and prior. PowerDNS Authoritative ('pdns_server') is not affected.

SOLUTION:
Update to version 3.1.7.2.
http://www.powerdns.com/en/downloads.aspx

PROVIDED AND/OR DISCOVERED BY:
The vendor credits anonymous third parties.

ORIGINAL ADVISORY:
1) http://doc.powerdns.com/powerdns-advisory-2010-01.html
2) http://doc.powerdns.com/powerdns-advisory-2010-02.html

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