| Package | Affected versions | Patched versions |
|---|---|---|
| authoritative | = 3.4.0= 3.4.1= 3.4.2= 3.4.3= 3.4.4≤ 3.3.2 | |
| recursor | = 3.7.1= 3.7.2≤ 3.6.3 |
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.
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