Denial of service in PowerDNS Authoritative

1) Resource management error

EUVDB-ID: #VU111735

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2012-0206

CWE-ID: CWE-399 - Resource Management Errors

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improper management of internal resources in common_startup.cc. A remote attacker can send specially crafted UDP responses to the server and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

PowerDNS Authoritative: before

CPE2.3

• cpe:2.3:a:powerdns_com_b_v:powerdns_authoritative:*:*:*:*:*:*:*:*

External links

https://doc.powerdns.com/changelog.html
https://doc.powerdns.com/powerdns-advisory-2012-01.html
https://bugzilla.redhat.com/show_bug.cgi?id=772570

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.