Short Name |
DNS:POWERDNS-NAMESRVR-UDP-DOS |
---|---|
Severity |
High |
Recommended |
Yes |
Recommended Action |
Drop |
Category |
DNS |
Keywords |
PowerDNS Nameserver Label Decompression Denial of Service |
Release Date |
2015/06/15 |
Update Number |
2506 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-11.4+, srx-12.1+, srx-branch-12.1+, vsrx-12.1+ |
This signature detects attempts to exploit a known vulnerability in the PowerDNS. A successful attack can lead to denial of service.
The label decompression functionality in PowerDNS Recursor 3.5.x, 3.6.x before 3.6.3, and 3.7.x before 3.7.2 and Authoritative (Auth) Server 3.2.x, 3.3.x before 3.3.2, and 3.4.x before 3.4.4 allows remote attackers to cause a denial of service (CPU consumption or crash) via a request with a name that refers to itself.