DNS-over-QUIC (DoQ) path-migration can lead to use-after-free on multi-threaded deployments. (NLnet Labs Unbound)
En bref
- Source
- NVD
- EPSS
- EPSS 0.33 % · centile 27 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- NLnet Labs
- Statut NVD
- Awaiting Analysis
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Description
NLnet Labs Unbound, 1.22.0 up to and including version 1.26.1, contains a DNS-over-QUIC (DoQ) lifetime bug reachable by a remote DoQ client under multi-threaded operation. A client-triggered QUIC path migration can enter stream/connection cleanup while a mesh reply still retains a pointer to the DoQ stream. Cleanup frees the DoQ stream and when the pending mesh reply later completes it dereferences a stale pointer leading to a crash.
Faiblesses (CWE)
- CWE-416 — Utilisation après libération
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 | NLnet Labs |
| 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 · sep@nlnetlabs.nl (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2026-107154
- GCVE · GCVE-0-2026-97206
Produits affectés
| Produit | Versions |
|---|---|
| NLnet Labs · Unbound | affected 1.22.0 < 1.26.2 |
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 |
| 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 |