SB2022032603 - Denial of service in PowerDNS Authoritative Server and Recursor
Published: March 26, 2022
Security Bulletin ID
SB2022032603
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2022-27227)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of an incoming IXFR transfer. A remote attacker can pass specially crafted input to the server and cause incomplete zone transfer to be handled as successful transfers.
Remediation
Install update from vendor's website.
References
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2022-01.html
- https://doc.powerdns.com/authoritative/security-advisories/powerdns-advisory-2022-01.html
- https://docs.powerdns.com/recursor/security-advisories/index.html
- https://doc.powerdns.com/authoritative/security-advisories/index.html
- http://www.openwall.com/lists/oss-security/2022/03/25/1