PowerDNS Undersized Additional Records Denial of Service

Strike ID:
D18-5mvr1
CVSS:
7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
False Positive:
f
Variants:
1
Year:
2018

Description

This strike exploits a denial of service vulnerability in PowerDNS. In a normal DNS message, the minimum number of bytes in the Additional Section is 16. If this section contains less than 11 bytes, an error in validation will lead to a buffer overread, which then causes the pdns_recursor service to terminate abnormally, leading to a denial of service condition

CVE

References

Bid