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Debian: CVE-2016-7068: pdns, pdns-recursor -- security update

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Debian: CVE-2016-7068: pdns, pdns-recursor -- security update

Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
01/13/2017
Created
07/25/2018
Added
01/14/2017
Modified
07/21/2020

Description

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.

Solution(s)

  • debian-upgrade-pdns
  • debian-upgrade-pdns-recursor

References

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