CVE-2016-7068
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Open-Xchange | pdns | 3.4.11 | affected |
| Open-Xchange | pdns | 4.0.2 | affected |
| Open-Xchange | pdns | 3.7.4 | affected |
| Open-Xchange | pdns | 4.0.4 | affected |
Weaknesses
- CWE-20: CWE-20
ADP Enrichment
CVE Program Container
Additional References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068
- https://www.debian.org/security/2017/dsa-3764
- https://www.debian.org/security/2017/dsa-3763
- https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7068
- https://www.debian.org/security/2017/dsa-3764
- https://www.debian.org/security/2017/dsa-3763
- https://doc.powerdns.com/md/security/powerdns-advisory-2016-02/
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