Security update for htmldoc (important)

An update that fixes one vulnerability is now available.

Description:

This update for htmldoc fixes the following issues:

htmldoc was updated to version 1.9.12

• Fixed buffer-overflow CVE-2021-20308 ( boo#1184424 )
• Fixed a crash bug with “data:” URIs and EPUB output
• Fixed several other crash bugs
• Fixed JPEG error handling
• Fixed some minor issues
• Removed the bundled libjpeg, libpng, and zlib.

update to 1.9.11:

• Added high-resolution desktop icons for Linux.
• Updated the internal HTTP library to fix truncation of redirection URLs
• Fixed a regression in the handling of character entities for UTF-8 input
• The --numbered option did not work when the table-of-contents was
  disabled
• Updated local zlib to v1.2.11.
• Updated local libpng to v1.6.37.
• Fixed packaging issues on macOS and Windows
• Now ignore sRGB profile errors in PNG files
• The GUI would crash when saving
• Page comments are now allowed in pre text

update to 1.9.9:

• Added support for a HTMLDOC.filename META keyword that controls the
  filename reported in CGI mode; the default remains “htmldoc.pdf” (Issue
  #367)
• Fixed a paragraph formatting issue with large inline images (Issue #369)
• Fixed a buffer underflow issue (Issue #370)
• Fixed PDF page numbers (Issue #371)
• Added support for a new L header/footer format ($LETTERHEAD), which
  inserts a letterhead image at its full size (Issue #372, Issue #373,
  Issue #375)
• Updated the build documentation (Issue #374)
• Refactored the PRE rendering code to work around compiler optimization
  bugs
• Added support for links with targets (Issue #351)
• Fixed a table rowspan + valign bug (Issue #360)
• Added support for data URIs (Issue #340)
• HTMLDOC no longer includes a PDF table of contents when converting a
  single web page (Issue #344)
• Updated the markdown support with external links, additional inline
  markup, and hard line breaks.
• Links in markdown text no longer render with a leading space as part of
  the link (Issue #346)
• Fixed a buffer underflow bug discovered by AddressSanitizer.
• Fixed a bug in UTF-8 support (Issue #348)
• PDF output now includes the base language of the input document(s)
• Optimized the loading of font widths (Issue #354)
• Optimized PDF page resources (Issue #356)
• Optimized the base memory used for font widths (Issue #357)
• Added proper ­ support (Issue #361)
• Title files can now be markdown.
• The GUI did not support EPUB output.
• Empty markdown table cells were not rendered in PDF or PostScript output.
• The automatically-generated title page now supports both “docnumber” and
  “version” metadata.
• Added support for dc:subject and dc:language metadata in EPUB output
  from the HTML keywords and lang values.
• Added support for the subject and language metadata in markdown input.
• Fixed a buffer underflow bug (Issue #338)
• htmldoc --help now reports whether HTTPS URLs are supported (Issue
  #339)
• Fixed an issue with HTML title pages and EPUB output.
• Inline fixed-width text is no longer reduced in size automatically
• Optimized initialization of font width data (Issue #334)
• Fixed formatting bugs with aligned images (Issue #322, Issue #324)
• Fixed support for three digit “#RGB” color values (Issue #323)
• Fixed character set support for markdown metadata.
• Updated libpng to v1.6.34 (Issue #326)
• The makefiles did not use the CPPFLAGS value (Issue #328)
• Added Markdown table support.
• Fixed parsing of TBODY, TFOOT, and THEAD elements in HTML files.

Patch Instructions:

To install this openSUSE Security Update use the SUSE recommended installation methods
like YaST online_update or “zypper patch”.

Alternatively you can run the command listed for your product:

• openSUSE Backports SLE-15-SP2:

  zypper in -t patch openSUSE-2021-893=1