Vulnerability CVE-2015-5470
Published: 2015-11-02

Description:
The label decompression functionality in PowerDNS Recursor before 3.6.4 and 3.7.x before 3.7.3 and Authoritative (Auth) Server before 3.3.3 and 3.4.x before 3.4.5 allows remote attackers to cause a denial of service (CPU consumption or crash) via a request with a long name that refers to itself. NOTE: this vulnerability exists because of an incomplete fix for CVE-2015-1868.

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.8/10
6.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Powerdns -> Authoritative 
Powerdns -> Recursor 

 References:
https://doc.powerdns.com/md/security/powerdns-advisory-2015-01/
http://www.openwall.com/lists/oss-security/2015/07/10/8
http://www.openwall.com/lists/oss-security/2015/07/07/6
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