DNS: PowerDNS Authoritative Server Dot Character Denial of Service
This signature detects attempts to exploit a known vulnerability in PowerDNS Authoritative Server. A successful attack can result in a denial-of-service condition.
Extended Description
PowerDNS (aka pdns) Authoritative Server before 3.4.10 does not properly handle a . (dot) inside labels, which allows remote attackers to cause a denial of service (backend CPU consumption) via a crafted DNS query.
Affected Products
Powerdns authoritative
References
CVE: CVE-2016-5427
Short Name
DNS:POWERDNS-DOT-DOS
Severity
Major
Recommended
True
Recommended Action
Drop
Category
DNS
Keywords
Authoritative CVE-2016-5426 CVE-2016-5427 Character Denial Dot PowerDNS Server Service of
Release Date
10/13/2016
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3337
False Positive
Unknown
Vendors
Powerdns
CVSS Score
5.0