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CVE-2026-78301Out-of-zone database nodes can become authoritative zone cuts

ISC BIND 9 Publicada: (hace 1 mes)

Descripción

A malformed zone may contain an NS or DNAME node above its origin, which `named` treats as a zone cut. If an attacker inserts a malformed zone into a BIND authoritative server (e.g., via zone transfer), queries for names inside the configured zone then lose authoritative status and return an out-of-zone delegation. On a server that also provides recursion BIND can follow this locally sourced cut and cache attacker-supplied data, affecting names outside the configured zone. This situation persists as long as the malformed zone remains in the zone database. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.

Debilidad (CWE): CWE-349

Datos: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Se publican tal como los indican las fuentes, en inglés.

Productos y versiones afectados

FabricanteProductoVersiones
isc bind 9.11.0 – ≤ 9.18.50
ISC BIND 9 9.11.0 – ≤ 9.18.50, 9.20.0 – ≤ 9.20.27, 9.21.0 – ≤ 9.21.25, 9.11.3-S1 – ≤ 9.18.50-S1, 9.20.9-S1 – ≤ 9.20.27-S1

Correcciones de Ubuntu

  • USN-8969-1 Bind vulnerabilities Ubuntu 26.10, 26.04, 24.04, 22.04 · 03.11.2026 · bind9

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