CVE-2016-7072

NameCVE-2016-7072
DescriptionAn 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-798-1, DSA-3764-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
pdns (PTS)jessie3.4.1-4+deb8u8fixed
jessie (security)3.4.1-4+deb8u7fixed
stretch4.0.3-1+deb9u2fixed
buster, sid4.1.4-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
pdnssource(unstable)4.0.2-1
pdnssourcejessie3.4.1-4+deb8u7DSA-3764-1
pdnssourcewheezy3.1-4.1+deb7u3DLA-798-1

Notes

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

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