A mingw-exiv2 security update has been released for Fedora 34.

SECURITY: Fedora 34 Update: mingw-exiv2-0.27.3-6.fc34

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Fedora Update Notification
FEDORA-2021-8253c78bd7
2021-06-04 01:12:01.240289
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Name : mingw-exiv2
Product : Fedora 34
Version : 0.27.3
Release : 6.fc34
URL :   http://www.exiv2.org/
Summary : MinGW Windows exiv2 library
Description :
MinGW Windows exiv2 library.

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Update Information:

Backport fixes for CVE-2021-32617, CVE-2021-29623.
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ChangeLog:

* Wed May 26 2021 Sandro Mani - 0.27.3-6
- Backport patch for CVE-2021-32617, CVE-2021-29623
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References:

[ 1 ] Bug #1961651 - CVE-2021-29623 mingw-exiv2: exiv2: a read of uninitialized memory may lead to information leak [fedora-all]
  https://bugzilla.redhat.com/show_bug.cgi?id=1961651
[ 2 ] Bug #1961693 - CVE-2021-32617 mingw-exiv2: exiv2: DoS due to quadratic complexity in ProcessUTF8Portion [fedora-all]
  https://bugzilla.redhat.com/show_bug.cgi?id=1961693
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-8253c78bd7' 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