Resource exhaustion in Open-Xchange Pdns
CVE-2016-7072
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.063 (93.4th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 93rd percentile — 93.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.063 · newest: 0.063 · change: 0.000
Affected products
- Open-Xchange Pdns — versions 4.0.2, 3.4.11
- Powerdns Authoritative
- Debian Linux — versions 8.0
Weakness classification (CWE)
References
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Issue Tracking)
- www.debian.org/security/2017/dsa-3764 (vendor-advisory, Third Party Advisory)
- doc.powerdns.com/md/security/powerdns-advisory-2016-03/ (Vendor Advisory)
Frequently asked questions
- What is CVE-2016-7072?
- CVE-2016-7072 is a medium-severity vulnerability in Open-Xchange Pdns, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2018-09-10.
- How severe is CVE-2016-7072?
- Medium severity. CVSS v3 base score is 5.3 out of 10.