NLnet Labs Unbound, up to and including version 1.16.1 is vulnerable to a novel type of the "ghost domain names" attack. The vulnerability works by ta...
Description d'origine
La description telle que publiée par la source (souvent en anglais).
NLnet Labs Unbound, up to and including version 1.16.1 is vulnerable to a novel type of the "ghost domain names" attack. The vulnerability works by targeting an Unbound instance. Unbound is queried for a subdomain of a rogue domain name. The rogue nameserver returns delegation information for the subdomain that updates Unbound's delegation cache. This action can be repeated before expiry of the delegation information by querying Unbound for a second level subdomain which the rogue nameserver provides new delegation information. Since Unbound is a child-centric resolver, the ever-updating child delegation information can keep a rogue domain name resolvable long after revocation. From version 1.16.2 on, Unbound checks the validity of parent delegation records before using cached delegation information.
État des correctifs par distribution
Paquets corrigés publiés par chaque distribution pour cette CVE
- Alpine Linux ALPINE-CVE-2022-30698 unbound Corrigé dans: 1.16.2-r0
- Debian DEBIAN-CVE-2022-30698 unbound Corrigé dans: 1.13.1-1+deb11u1
- Ubuntu UBUNTU-CVE-2022-30698 unbound
Références
- advisory security.gentoo.org
- advisory nlnetlabs.nl
- web lists.debian.org
- web lists.fedoraproject.org
- web lists.fedoraproject.org