This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-42387 →

DEBIAN-CVE-2026-42387

A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to a crash of the Recursor due to insuffcient input v...

Original description

The description as published by the source.

A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to a crash of the Recursor due to insuffcient input validation.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 pdns-recursor

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

Debian:13 pdns-recursor

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.2.11-0+deb13u1"}]}]

Debian:14 pdns-recursor

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.4.3-1"}]}]

References

advisory security-tracker.debian.org