CVE-2016-5426 Denial of service in n/a
Remote attackers can cause denial of service via high CPU consumption by sending a long query name to PowerDNS Authoritative Server.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2016-5426?
CVE-2016-5426 is a high-severity denial of service vulnerability in n/a, published on 21 Sep 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
PowerDNS (aka pdns) Authoritative Server before 3.4.10 allows remote attackers to cause a denial of service (backend CPU consumption) via a long qname.
Weakness: CWE-399
Which versions are affected by CVE-2016-5426?
It affects 1 product.
Products include Powerdns Authoritative.
How do I fix CVE-2016-5426?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2016-5426 being exploited?
There is no known exploitation of CVE-2016-5426 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2016-5426, GHSA-ghrw-639j-38vq.