This security bulletin contains one medium risk vulnerability.
Exploit availability: NoDescription
The vulnerability allows a remote non-authenticated attacker to manipulate data.
An issue has been found in PowerDNS before 3.4.11 and 4.0.2, and PowerDNS recursor before 4.0.4, allowing an attacker in position of man-in-the-middle to alter the content of an AXFR because of insufficient validation of TSIG signatures. A missing check that the TSIG record is the last one, leading to the possibility of parsing records that are not covered by the TSIG signature.Mitigation
Install update from vendor's website.Vulnerable software versions
PowerDNS: 3.4.0 - 3.4.10
Can this vulnerability be exploited remotely?
How the attacker can exploit this vulnerability?
Is there known malware, which exploits this vulnerability?