CyberRota Analysis
AI-GeneratedCoreDNS versions 1.9.4 to 1.14.5 are vulnerable to a panic condition triggered by a network DNS client requesting AXFR for a zone when configured with Kubernetes headless service zone transfers that lack declared ports. This vulnerability could lead to service disruptions in environments utilizing Kubernetes. Organizations running affected versions of CoreDNS should prioritize upgrading to version 1.14.5 to mitigate potential impacts on DNS service stability.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
CoreDNS is a DNS server written in Go. From 1.9.4 until 1.14.5, a network DNS client allowed to request AXFR for a CoreDNS zone can trigger a panic when CoreDNS is configured with k8s_external headless-service zone transfers and Kubernetes contains a headless service endpoint with no declared ports; plugin/kubernetes/object/endpoint.go creates Port: -1, plugin/k8s_external/msg_to_dns.go skips that service, plugin/k8s_external/transfer.go sends an empty []dns.RR batch, and plugin/transfer/transfer.go indexes records[0] without checking the batch is non-empty. This issue is fixed in version 1.14.5.
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