Aller au contenu
en Se connecter
7.5 Élevée

CVE-2026-81634 In NLnet Labs Unbound up to and including 1.26.0, a 255 length query name with a large TCP response can lead to a heap…

Description

In NLnet Labs Unbound up to and including 1.26.0, a 255 length query name with a large TCP response can lead to a heap buffer overflow during the RRSet canonicalisation routine. This is caused by missing to add the first owner name into the buffer length check. A malicious actor operating a malicious name server or tampering with an incoming response to Unbound (canonicalisation happens before DNSSEC validation), can trigger the vulnerability.

Produits et versions touchés

Produit Versions touchées Corrigé en
unbound 1.26 premières → < 1.26.1 1.26.1

Références

Chronologie

  1. Publiée
  2. Dernière modification

Autres CVE de unbound

Les 58 CVE de unbound →
CVE-2026-97206 NLnet Labs Unbound, 1.22.0 up to and including version 1.26.1, contains a DNS-over-QUIC (DoQ) lifetime bug reachable… 7.5 Élevée CVE-2026-96405 NLnet Labs Unbound up to and including version 1.26.1 limits compression-pointer traversal for each individual… 5.3 Moyenne CVE-2026-50106 When NLnet Labs Unbound up to and including version 1.26.1 is configured with both a root trust anchor and an additional… 6.5 Moyenne CVE-2026-35501 When NLnet Labs Unbound 1.0.1 up to and including version 1.26.1 is configured with both a root trust anchor and an… 3.7 Faible
Suivre cette CVE