The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4135 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4135-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                          Adrian Bunk     April 23, 2025                                https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : haproxy     Version        : 2.2.9-2+deb11u7     CVE ID         : CVE-2025-32464     Debian Bug     : 1102673

    A heap buffer overflow in sample_conv_regsub() has been fixed in the     load balancing reverse proxy HAProxy.

    For Debian 11 bullseye, this problem has been fixed in version     2.2.9-2+deb11u7.

    We recommend that you upgrade your haproxy packages.

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

    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-4135 : haproxy - security update

medium Nessus Plugin ID 234783

Version 1.1