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CVE-2026-12617Record ordering based unexpected exit with CNAME or DNAME

ISC BIND 9 Publicada: (hace 3 meses)

Descripción

The issue is unexpected program termination based on ordering and/or specific content in responses to queries for CNAME or DNAME, and A records. Specifically, if a client queries for a DNAME and A record below the DNAME to the resolver, and the authoritative server responds positively to the A query but delays the DNAME response and later responds negatively, `named` may quit unexpectedly. Or, if a client queries for a CNAME and A record for the same name to the resolver, and the authoritative server responds positively to the A query but delays the CNAME response and later responds with a self-referential CNAME, the same failure may occur. This issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.24, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.

Debilidad (CWE): CWE-617

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 9.18.0 – ≤ 9.18.50
ISC BIND 9 9.18.0 – ≤ 9.18.50, 9.20.0 – ≤ 9.20.24, 9.18.11-S1 – ≤ 9.18.50-S1, 9.20.9-S1 – ≤ 9.20.24-S1

Referencias y parches

Coincidencias CPE (NVD) (4)
  • cpe:2.3:a:isc:bind:*:*:*:*:-:*:*:* ≥ 9.18.0 ≤ 9.18.50
  • cpe:2.3:a:isc:bind:*:*:*:*:supported_preview:*:*:* ≥ 9.18.11 ≤ 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

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