Cette page suit l'état du correctif pour Ubuntu. La vulnérabilité elle-même est décrite sur la page CVE principale.
Voir CVE-2026-11622 →
UBUNTU-CVE-2026-11622
A DNSSEC validating resolver that is under a random subdomain attack against a DNSSEC-signed zone can suffer from runaway memory usage. The attacker n...
Description d'origine
La description telle que publiée par la source (souvent en anglais).
A DNSSEC validating resolver that is under a random subdomain attack against a DNSSEC-signed zone can suffer from runaway memory usage. The attacker needs to be able to send queries faster than the resolver can perform validation. The increased memory usage can be orders of magnitude beyond the limit configured in the max-cache-size parameter. This issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Paquets affectés
Ubuntu:Pro:14.04:LTS
bind9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:16.04:LTS
bind9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:18.04:LTS
bind9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:18.04:LTS
isc-dhcp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:Pro:20.04:LTS
bind9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.18.30-0ubuntu0.20.04.2+esm3"}]}]
Ubuntu:20.04:LTS
bind9-libs
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:22.04:LTS
bind9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.18.39-0ubuntu0.22.04.5"}]}]
Ubuntu:22.04:LTS
bind9-libs
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:24.04:LTS
bind9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.18.39-0ubuntu0.24.04.6"}]}]
Ubuntu:24.04:LTS
isc-dhcp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Ubuntu:26.04:LTS
bind9
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:9.20.24-1ubuntu0.2"}]}]
Ubuntu:26.04:LTS
isc-dhcp
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Références
- advisory ubuntu.com
- advisory ubuntu.com
- report ubuntu.com
- report cve.org
- report kb.isc.org