CVE-2016-7072

Name	CVE-2016-7072
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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-798-1, DSA-3764-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
pdns (PTS)	jessie, jessie (lts)	3.4.1-4+deb8u10	fixed
	stretch (security), stretch (lts), stretch	4.0.3-1+deb9u5	fixed
	buster	4.1.6-3+deb10u1	fixed
	bullseye	4.4.1-1	fixed
	bookworm	4.7.3-2	fixed
	sid, trixie	4.9.2-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
pdns	source	wheezy	3.1-4.1+deb7u3	DLA-798-1
pdns	source	jessie	3.4.1-4+deb8u7	DSA-3764-1
pdns	source	(unstable)	4.0.2-1

https://doc.powerdns.com/md/security/powerdns-advisory-2016-03/