A ghc-hakyll security update has been released for Fedora 31.

SECURITY: Fedora 31 Update: ghc-hakyll-4.12.5.2-2.fc31

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Fedora Update Notification
FEDORA-2020-fe299b3fa3
2020-10-06 15:06:57.555099
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Name : ghc-hakyll
Product : Fedora 31
Version : 4.12.5.2
Release : 2.fc31
URL :   https://hackage.haskell.org/package/hakyll
Summary : A static website compiler library
Description :
Hakyll is a static website compiler library. It provides you with the tools to
create a simple or advanced static website using a Haskell DSL and formats such
as markdown or RST. You can find more information, including a tutorial, on the
website: (  http://jaspervdj.be/hakyll) .

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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   https://github.com/github/cmark-
gfm/security/advisories/GHSA-7gc6-9qr5-hc85
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ChangeLog:

* Thu Sep 24 2020 Jens Petersen - 4.12.5.2-2
- rebuild for cmark-gfm-0.2.2: fixes exponential parse (#1854329)
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References:

[ 1 ] Bug #1854328 - CVE-2020-5238 cmark: Exponential time to parse certain inputs could lead to DoS.
  https://bugzilla.redhat.com/show_bug.cgi?id=1854328
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2020-fe299b3fa3' at the command
line. For more information, refer to the dnf documentation available at
  http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
  https://fedoraproject.org/keys