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CVE-2016-7068 PUBLISHED

An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 3.7.4 and 4.0.4, allowing a remote, unauthenticated attacker to cause an abnormal CPU usage load on the PowerDNS server by sending crafted DNS queries, which might result in a partial denial of service if the system becomes overloaded. This issue is based on the fact that the PowerDNS server parses all records present in a query regardless of whether they are needed or even legitimate. A specially crafted query containing a large number of records can be used to take advantage of that behaviour.

EPSS 0.09% · 24.7th percentile

Risk Scores

EPSS Score
0.09%
24.7th percentile

Affected Products

VendorProductVersions
Ubuntu:Pro:16.04:LTSpdns-recursor4.0.0~alpha2-2ubuntu0.1, 4.0.0~alpha2-2ubuntu0.1+esm1, 4.0.0~alpha2-2
Ubuntu:Pro:16.04:LTSpdns4.0.0~alpha1-1, 4.0.0~alpha2-3, 4.0.0~alpha2-3build1
Ubuntu:14.04:LTSpdns-recursor0, 3.5.3-1, 3.3-3

Timeline

References

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