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CVE-2026-11331Potential wildcard CNAME RPZ policy bypass

ISC BIND 9 Yayım: (3 ay önce)

Açıklama

An attacker who knows (or guesses) that a resolver uses RPZ with wildcard CNAME policies can craft query names long enough to trigger a NAMETOOLONG error condition during RPZ processing. This is not handled correctly and may lead to defeating the RPZ rule. It also may lead to an unexpected exit of the BIND 9 software. This issue affects BIND 9 versions 9.16.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.16.8-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.

Zayıflık türü (CWE): CWE-790

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

Etkilenen ürünler ve sürümler

ÜreticiÜrünSürümler
isc bind 9.16.0 – ≤ 9.18.50
ISC BIND 9 9.16.0 – ≤ 9.18.50, 9.20.0 – ≤ 9.20.24, 9.21.0 – ≤ 9.21.23, 9.16.8-S1 – ≤ 9.18.50-S1, 9.20.9-S1 – ≤ 9.20.24-S1

Kaynaklar ve yamalar

CPE eşleşmeleri (NVD) (5)
  • cpe:2.3:a:isc:bind:*:*:*:*:supported_preview:*:*:* ≥ 9.16.8 ≤ 9.18.50
  • cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* ≥ 9.18.0 ≤ 9.18.50
  • 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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