Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Powerdns | Authoritative | < 3.4.11 |
| Debian | Debian Linux | 8.0 |
Related Weaknesses (CWE)
References
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7072Issue TrackingThird Party Advisory
- https://doc.powerdns.com/md/security/powerdns-advisory-2016-03/Vendor Advisory
- https://www.debian.org/security/2017/dsa-3764Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7072Issue TrackingThird Party Advisory
- https://doc.powerdns.com/md/security/powerdns-advisory-2016-03/Vendor Advisory
- https://www.debian.org/security/2017/dsa-3764Third Party Advisory
FAQ
What is CVE-2016-7072?
CVE-2016-7072 is a vulnerability with a CVSS score of 5.3 (MEDIUM). 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 t...
How severe is CVE-2016-7072?
CVE-2016-7072 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-7072?
Check the references section above for vendor advisories and patch information. Affected products include: Powerdns Authoritative, Debian Debian Linux.