The remote Debian 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the dla-3149 advisory.

  - A command injection vulnerability in Nokogiri v1.10.3 and earlier allows commands to be executed in a     subprocess via Ruby's `Kernel.open` method. Processes are vulnerable only if the undocumented method     `Nokogiri::CSS::Tokenizer#load_file` is being called with unsafe user input as the filename. This     vulnerability appears in code generated by the Rexical gem versions v1.0.6 and earlier. Rexical is used by     Nokogiri to generate lexical scanner code for parsing CSS queries. The underlying vulnerability was     addressed in Rexical v1.0.7 and Nokogiri upgraded to this version of Rexical in Nokogiri v1.10.4.
    (CVE-2019-5477)

  - Nokogiri is a Rubygem providing HTML, XML, SAX, and Reader parsers with XPath and CSS selector support. In     Nokogiri before version 1.11.0.rc4 there is an XXE vulnerability. XML Schemas parsed by     Nokogiri::XML::Schema are trusted by default, allowing external resources to be accessed over the network,     potentially enabling XXE or SSRF attacks. This behavior is counter to the security policy followed by     Nokogiri maintainers, which is to treat all input as untrusted by default whenever possible. This is fixed     in Nokogiri version 1.11.0.rc4. (CVE-2020-26247)

  - Nokogiri is an open source XML and HTML library for Ruby. Nokogiri `< v1.13.4` contains an inefficient     regular expression that is susceptible to excessive backtracking when attempting to detect encoding in     HTML documents. Users are advised to upgrade to Nokogiri `>= 1.13.4`. There are no known workarounds for     this issue. (CVE-2022-24836)

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-3149-1 : ruby-nokogiri - LTS security update

critical Nessus Plugin ID 166069

Version 1.2