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CVE-2026-11331 An attacker who knows (or guesses) that a resolver uses RPZ with wildcard CNAME policies can craft query names long…

Description

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.

Produits et versions touchés

Produit Versions touchées Corrigé en
BIND 9 9.21 9.21.0 → 9.21.23 Pas de correctif indiqué
BIND 9 9.20 9.20.0 → 9.20.24 Pas de correctif indiqué
BIND 9 9.16 9.16.0 → 9.18.50 Pas de correctif indiqué

Références

Chronologie

  1. Publiée
  2. Dernière modification

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