The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4260 advisory.

    - -------------------------------------------------------------------------     Debian LTS Advisory DLA-4260-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                           Chris Lamb     August 02, 2025                               https://wiki.debian.org/LTS
    - -------------------------------------------------------------------------

    Package        : sope     Version        : 5.0.1-2+deb11u1     CVE ID         : CVE-2025-53603     Debian Bug     : 1108798

    Stefan Buehler discovered a flaw in sope, the set of Objective-C     frameworks powering SOGo, which may result in denial of service via a     specially crafted POST request.

    For Debian 11 bullseye, this problem has been fixed in version     5.0.1-2+deb11u1.

    We recommend that you upgrade your sope packages.

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

    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.

Detections

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Debian dla-4260 : libsope-dev - security update

high Nessus Plugin ID 243305

Version 1.1