CVE-2025-58063 (GCVE-0-2025-58063)

Vulnerability from cvelistv5 – Published: 2025-09-09 19:27 – Updated: 2025-09-10 14:26
VLAI
Title
CoreDNS: DNS Cache Pinning via etcd Lease ID Confusion
Summary
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
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-09-10 14:26 UTC
CWE
  • CWE-681 - Incorrect Conversion between Numeric Types
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7994 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
coredns coredns Affected: >= 1.2.0, < 1.12.4
guessed Create a notification for this product.
Show details on NVD website
To clipboard 

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