[SA22824] PowerDNS Recursor Two Vulnerabilities

2006-11-14T00:00:00
ID SECURITYVULNS:DOC:15049
Type securityvulns
Reporter Securityvulns
Modified 2006-11-14T00:00:00

Description

TITLE: PowerDNS Recursor Two Vulnerabilities

SECUNIA ADVISORY ID: SA22824

VERIFY ADVISORY: http://secunia.com/advisories/22824/

CRITICAL: Highly critical

IMPACT: DoS, System access

WHERE: >From remote

SOFTWARE: PowerDNS Recursor 3.x http://secunia.com/product/9556/ PowerDNS 2.x http://secunia.com/product/929/

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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