The remote Debian 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-3555 advisory.

    -------------------------------------------------------------------------     Debian LTS Advisory DLA-3555-1                debian-lts@lists.debian.org     https://www.debian.org/lts/security/                       Guilhem Moulin     September 05, 2023                            https://wiki.debian.org/LTS
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    Package        : php7.3     Version        : 7.3.31-1~deb10u5     CVE ID         : CVE-2023-3823 CVE-2023-3824

    Security issues were found in PHP, a widely-used open source general     purpose scripting language, which could result in information     disclosure, denial of service or potentially remote code execution.

    CVE-2023-3823

         Various XML functions rely on libxml global state to track          configuration variables, like whether external entities are loaded.
         This state is assumed to be unchanged unless the user explicitly          changes it by calling appropriate function.  Joas Schilling and          Baptista Katapi discovered that, since the state is process-global,          other modules  such as ImageMagick  may also use this library          within the same process and change that global state for their          internal purposes, and leave it in a state where external entities          loading is enabled.  This can lead to the situation where external          XML is parsed with external entities loaded, which can lead to          disclosure of any local files accessible to PHP.  This vulnerable          state may persist in the same process across many requests, until          the process is shut down.

    CVE-2023-3824

        Niels Dossche discovered that when loading a Phar file, while         reading PHAR directory entries, insufficient length checking may         lead to a stack buffer overflow, leading potentially to memory         corruption or RCE.

    For Debian 10 buster, these problems have been fixed in version     7.3.31-1~deb10u5.

    We recommend that you upgrade your php7.3 packages.

    For the detailed security status of php7.3 please refer to     its security tracker page at:
    https://security-tracker.debian.org/tracker/php7.3

    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     Attachment:
    signature.asc     Description: PGP signature

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

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

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Debian dla-3555 : libapache2-mod-php7.3 - security update

critical Nessus Plugin ID 180518

Version 1.1