Add a generic HTML cleaning service

This will be able to be used by all components that need to display untrusted HTML: including HTML attachments, RSS feeds, and the html-include macro...

Multiple gnuts bugs

Multiple buffer overflows in different components...

CVE-2024-21679

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CVE-2024-23407

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CVE-2024-21693

CVE-2024-21693 entry is rejected/not used and does not represent an active vulnerability entry.

CVE-2023-4784

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CVE-2024-4108

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CVE-2024-12242

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CVE-2012-3772

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CVE-2021-23122

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CVE-2021-23067

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CVE-2021-23084

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CVE-2021-23092

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CVE-2021-23947

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CVE-2021-0184

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CVE-2021-0137

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CVE-2021-0043

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CVE-2021-0014

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CVE-2021-0032

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CVE-2021-0130

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