Sicherheit: Denial of Service in pandoc
Aktuelle Meldungen Distributionen
Name: Denial of Service in pandoc
ID: FEDORA-2020-c39d7a562c
Distribution: Fedora
Plattformen: Fedora 33
Datum: Di, 29. September 2020, 06:39
Referenzen: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-5238
Applikationen: pandoc


Fedora Update Notification
2020-09-29 00:15:09.214565

Name : pandoc
Product : Fedora 33
Version :
Release : 8.fc33
URL : https://hackage.haskell.org/package/pandoc
Summary : Conversion between markup formats
Description :
Pandoc is a Haskell library for converting from one markup format to another,
and a command-line tool that uses this library. It can read several dialects of
Markdown and (subsets of) HTML, reStructuredText, LaTeX, DocBook, JATS,
MediaWiki markup, DokuWiki markup, TWiki markup, TikiWiki markup, Jira markup,
Creole 1.0, Haddock markup, OPML, Emacs Org-Mode, Emacs Muse, txt2tags, ipynb
(Jupyter notebooks), Vimwiki, Word Docx, ODT, EPUB, FictionBook2, roff man,
Textile, and CSV, and it can write Markdown, reStructuredText, XHTML, HTML 5,
LaTeX, ConTeXt, DocBook, JATS, OPML, TEI, OpenDocument, ODT, Word docx,
PowerPoint pptx, RTF, MediaWiki, DokuWiki, XWiki, ZimWiki, Textile, Jira, roff
man, roff ms, plain text, Emacs Org-Mode, AsciiDoc, Haddock markup, EPUB (v2
and v3), ipynb, FictionBook2, InDesign ICML, Muse, LaTeX beamer slides, and
several kinds of HTML/JavaScript slide shows (S5, Slidy, Slideous, DZSlides,

In contrast to most existing tools for converting Markdown to HTML, pandoc has
a modular design: it consists of a set of readers, which parse text in a given
format and produce a native representation of the document, and a set of
writers, which convert this native representation into a target format.
Thus, adding an input or output format requires only adding a reader or writer.

For pdf output please also install pandoc-pdf or weasyprint.

Update Information:

Security fix for CVE-2020-5238 - ghc-cmark-gfm updated to 0.2.2 which rebases
the bundled cmark-gfm to 0.29.0.gfm.1 - also update pandoc-citeproc to

* Sat Sep 19 2020 Jens Petersen <petersen@redhat.com> -
- rebuild for cmark-gfm-0.2.2: fixes exponential parse (#1854329)

[ 1 ] Bug #1854328 - CVE-2020-5238 cmark: Exponential time to parse certain
inputs could lead to DoS.

This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2020-c39d7a562c' at the command
line. For more information, refer to the dnf documentation available at

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