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CVE-2025-58063
Good to know:
Date: September 9, 2025
CoreDNS is a DNS server that chains plugins. Starting in version 1.2.0 and prior to version 1.12.4, the CoreDNS etcd plugin contains a TTL confusion vulnerability where lease IDs are incorrectly used as TTL values, enabling DNS cache pinning attacks. This effectively creates a DoS condition for DNS resolution of affected services. The "TTL()" function in "plugin/etcd/etcd.go" incorrectly casts etcd lease IDs (64-bit integers) to uint32 and uses them as TTL values. Large lease IDs become very large TTLs when cast to uint32. This enables cache pinning attacks. Version 1.12.4 contains a fix for the issue.
Severity Score
Related Resources (5)
Severity Score
Weakness Type (CWE)
Incorrect Conversion between Numeric Types
CWE-681Top Fix
Upgrade Version
Upgrade to version github.com/coredns/coredns - v1.12.4;https://github.com/coredns/coredns.git - v1.12.4
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | LOW |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | NONE |
| Integrity (I): | LOW |
| Availability (A): | HIGH |