Denial of service in PowerDNS Recursor
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-37428 |
| CWE-ID | CWE-755 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
PowerDNS Recursor Server applications / DNS servers |
| Vendor | PowerDNS.COM B.V. |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Improper Handling of Exceptional Conditions
EUVDB-ID: #VU66715
Risk: Medium
CVSSv3.1: 5.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-37428
CWE-ID:
CWE-755 - Improper Handling of Exceptional Conditions
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to incorrect exceptions handling with enabled protobuf logging. A remote attacker can send a specially crafted request to the DNS server and perform a denial of service (DoS) attack.
Install updates from vendor's website.
Vulnerable software versionsPowerDNS Recursor: 4.0.0 - 4.7.1
External linkshttp://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2022-02.html
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.
