CVE-2019-10163 Denial of service in pdns
A remote authorized master server can cause high CPU load or block slave zone updates in PowerDNS by sending excessive NOTIFY messages.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2019-10163?
CVE-2019-10163 is a low-severity denial of service vulnerability in Opensuse Backports, published on 30 Jul 2019. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A Vulnerability has been found in PowerDNS Authoritative Server before versions 4.1.9, 4.0.8 allowing a remote, authorized master server to cause a high CPU load or even prevent any further updates to any slave zone by sending a large number of NOTIFY messages. Note that only servers configured as slaves are affected by this issue.
Weakness: CWE-770
Which versions are affected by CVE-2019-10163?
It affects 3 products.
Products include Opensuse Backports, Opensuse Leap, Powerdns Authoritative.
How do I fix CVE-2019-10163?
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-2019-10163 being exploited?
There is no known exploitation of CVE-2019-10163 in the wild and no public exploit code.
Other vulnerabilities in Opensuse Backports
Sources
Also known as DEBIAN-CVE-2019-10163, GHSA-25qr-4mfj-987c, UBUNTU-CVE-2019-10163.