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CVE-2026-11605Unnecessary validation of DNSSEC signed records

ISC BIND 9 Yayım: (3 ay önce)

Açıklama

The issue is a resource exhaustion vulnerability associated with DNSSEC validation. BIND always validates all RRSIG records in an answer, even if they are not strictly needed. A query to an authoritative server/zone which returns many valid but superfluous RRSIG records causes the validator to waste disproportionate CPU time. This issue affects BIND 9 versions 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, and 9.20.9-S1 through 9.20.24-S1.

Zayıflık türü (CWE): CWE-408

Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.

Etkilenen ürünler ve sürümler

ÜreticiÜrünSürümler
isc bind 9.20.0 – ≤ 9.20.24
ISC BIND 9 9.20.0 – ≤ 9.20.24, 9.21.0 – ≤ 9.21.23, 9.20.9-S1 – ≤ 9.20.24-S1

Kaynaklar ve yamalar

CPE eşleşmeleri (NVD) (3)
  • cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* ≥ 9.20.0 ≤ 9.20.24
  • cpe:2.3:a:isc:bind:*:*:*:*:supported_preview:*:*:* ≥ 9.20.9 ≤ 9.20.24
  • cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* ≥ 9.21.0 ≤ 9.21.23

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