What’s Vulnerable › Vulnerabilities

CVE-2012-1193

• Severity: medium (CVSS 6.4 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 5.6% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2012-02-17 · updated 2026-06-16

Description

The resolver in PowerDNS Recursor (aka pdns_recursor) 3.3 overwrites cached server names and TTL values in NS records during the processing of a response to an A record query, which allows remote attackers to trigger continued resolvability of revoked domain names via a "ghost domain names" attack.

Affected products

• Powerdns Recursor: 3.3

References

• http://lists.fedoraproject.org/pipermail/package-announce/2013-April/102729.html
• http://lists.fedoraproject.org/pipermail/package-announce/2013-May/104173.html
• http://lists.fedoraproject.org/pipermail/package-announce/2013-May/104177.html
• https://www.isc.org/files/imce/ghostdomain_camera.pdf
• http://lists.fedoraproject.org/pipermail/package-announce/2013-April/102729.html
• http://lists.fedoraproject.org/pipermail/package-announce/2013-May/104173.html
• http://lists.fedoraproject.org/pipermail/package-announce/2013-May/104177.html
• https://www.isc.org/files/imce/ghostdomain_camera.pdf

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