Remote Code Execution Vulnerability in PowerDNS Recursor by PowerDNS
CVE-2023-22617

7.5HIGH

Key Information:

Vendor
Powerdns
Status
Recursor
Vendor
CVE Published:
21 January 2023

Summary

A vulnerability exists in PowerDNS Recursor 4.8.0 that allows a remote attacker to exploit a DNS query resulting in infinite recursion. This flaw arises due to QName minimization in QM fallback mode when retrieving DS records from misconfigured domains. The issue has been addressed in version 4.8.1, which mitigates the possibility of such exploits.

References

https://docs.powerdns.com/recursor/security-advisories/
http://www.openwall.com/lists/oss-security/2023/01/20/1
mailing-list
https://docs.powerdns.com/recursor/changelog/4.8.html#cha...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.