Resource Exhaustion Affecting pdns package, versions *
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU1604-PDNS-404683
- published27 Jun 2018
- disclosed10 Sept 2018
Introduced: 27 Jun 2018
CVE-2016-7072 (opens in a new tab)How to fix?
There is no fixed version for Ubuntu:16.04 pdns.
NVD Description
Note: Versions mentioned in the description apply only to the upstream pdns package and not the pdns package as distributed by Ubuntu.
See How to fix? for Ubuntu:16.04 relevant fixed versions and status.
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.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-7072
- https://doc.powerdns.com/md/security/powerdns-advisory-2016-03/
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7072
- https://www.debian.org/security/2017/dsa-3764
- https://security-tracker.debian.org/tracker/CVE-2016-7072
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7072