First published: Mon Sep 10 2018(Updated: )
An issue has been found in PowerDNS Authoritative Server before 3.4.11 and 4.0.2 allowing a remote, unauthenticated attacker to cause a denial of service by opening a large number of TCP connections to the web server. If the web server runs out of file descriptors, it triggers an exception and terminates the whole PowerDNS process. While it's more complicated for an unauthorized attacker to make the web server run out of file descriptors since its connection will be closed just after being accepted, it might still be possible.
Credit: secalert@redhat.com
Affected Software | Affected Version | How to fix |
---|---|---|
PowerDNS Authoritative | <3.4.11 | |
PowerDNS Authoritative | >=4.0.0<4.0.2 | |
Debian Debian Linux | =8.0 | |
debian/pdns | 4.1.6-3+deb10u1 4.4.1-1 4.7.3-2 4.8.3-1 4.8.3-2 |
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
CVE-2016-7072 is a vulnerability found in PowerDNS Authoritative Server before 3.4.11 and 4.0.2 that allows a remote, unauthenticated attacker to cause a denial of service by opening a large number of TCP connections to the web server.
CVE-2016-7072 has a severity rating of 7.5 (High).
PowerDNS Authoritative Server versions before 3.4.11 and 4.0.2 are affected by CVE-2016-7072.
To fix CVE-2016-7072, update PowerDNS Authoritative Server to version 3.4.11 or 4.0.2.
More information about CVE-2016-7072 can be found in the following references: [Link 1](https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7072), [Link 2](https://doc.powerdns.com/md/security/powerdns-advisory-2016-03/), [Link 3](https://www.debian.org/security/2017/dsa-3764).