The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4050 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4050-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                      Paride Legovini     February 11, 2025                             https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : bind9     Version        : 1:9.16.50-1~deb11u3     CVE ID         : CVE-2024-11187

    One vulnerability was discovered in BIND, a DNS server implementation, which     may result in denial of service.

    It is possible to construct a zone such that some queries to it will generate     responses containing numerous records in the Additional section. An attacker     sending many such queries can cause either the authoritative server itself or     an independent resolver to use disproportionate resources processing the     queries. Zones will usually need to have been deliberately crafted to exploit     this flaw.

    For Debian 11 bullseye, this problem has been fixed in version     1:9.16.50-1~deb11u3.

    We recommend that you upgrade your bind9 packages.

    For the detailed security status of bind9 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/bind9

    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

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

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Debian dla-4050 : bind9 - security update

high Nessus Plugin ID 216096

Version 1.1