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Debian LTS Advisory DLA-3457-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                   Bastien Roucariès
June 19, 2023                                 https://wiki.debian.org/LTS
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Package        : maradns
Version        : 2.0.13-1.2+deb10u1
CVE ID         : CVE-2022-30256 CVE-2023-31137
Debian Bug     : 1033252 1035936

MaraDNS is a small and lightweight cross-platform open-source DNS server.

CVE-2022-30256

    A revoked domain name (so called "Ghost" domain name) can still be
    resolvable for a long time by staying in the cache longer than
    max_ttl allows. "Ghost" domain names includes expired domains
    and taken-down malicious domains.

CVE-2023-31137

    The authoritative server in MaraDNS had an issue where it is
    possible to remotely terminate the MaraDNS process with a
    specialy crafted packet (so called "packet of death").

For Debian 10 buster, these problems have been fixed in version
2.0.13-1.2+deb10u1.

We recommend that you upgrade your maradns packages.

For the detailed security status of maradns please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/maradns

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS