CVE-2026-12617
Record ordering based unexpected exit with CNAME or DNAME
En bref
- Source
- NVD
- EPSS
- EPSS 0.52 % · centile 44 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- isc
- Statut NVD
- Undergoing Analysis
Description
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.
Faiblesses (CWE)
- CWE-617 — Assertion atteignable
Références
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | isc |
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · security-officer@isc.org (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-47711
- GCVE · GCVE-0-2026-12617
Avis du CERT-FR
- CERTFR-2026-AVI-1206 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| ISC · BIND 9 | affected 9.18.0 ≤ 9.18.50 ; affected 9.20.0 ≤ 9.20.24 ; affected 9.18.11-S1 ≤ 9.18.50-S1 ; affected 9.20.9-S1 ≤ 9.20.24-S1 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |