Cette page suit l'état du correctif pour Debian. La vulnérabilité elle-même est décrite sur la page CVE principale. Voir CVE-2026-40211 →

DEBIAN-CVE-2026-40211

An attacker can send crafted DNS over HTTP/3 queries, triggering an exception that prevents some buffer from being freed right away. The buffer will b...

Description d'origine

La description telle que publiée par la source (souvent en anglais).

An attacker can send crafted DNS over HTTP/3 queries, triggering an exception that prevents some buffer from being freed right away. The buffer will be freed at the end of the QUIC connection, but on some setups it might be possible to open enough concurrent DoH3 streams to trigger an out-of-memory condition, resulting in a denial of service.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Paquets affectés

Debian:12 dnsdist

[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

Debian:13 dnsdist

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.9.15-0+deb13u1"}]}]

Debian:14 dnsdist

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.1.0-1"}]}]

Références

advisory security-tracker.debian.org