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

SECURITY: Fedora 34 Update: mingw-exiv2-0.27.4-2.fc34

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Fedora Update Notification
FEDORA-2021-0b27f220bd
2021-08-02 01:02:57.308649
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Name : mingw-exiv2
Product : Fedora 34
Version : 0.27.4
Release : 2.fc34
URL :   http://www.exiv2.org/
Summary : MinGW Windows exiv2 library
Description :
MinGW Windows exiv2 library.

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Update Information:

Update to 0.27.4, fixes CVE-2021-29463 and CVE-2021-29464.
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ChangeLog:

* Thu Jul 22 2021 Fedora Release Engineering - 0.27.4-2
- Rebuilt for   https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild
* Sun Jun 20 2021 Sandro Mani - 0.27.4-1
- Update to 0.27.4
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References:

[ 1 ] Bug #1982185 - CVE-2021-29463 mingw-exiv2: exiv2: out-of-bounds read is triggered via crafted image file [fedora-all]
  https://bugzilla.redhat.com/show_bug.cgi?id=1982185
[ 2 ] Bug #1982189 - CVE-2021-29464 mingw-exiv2: exiv2: heap-based buffer overflow via crafted image file [fedora-all]
  https://bugzilla.redhat.com/show_bug.cgi?id=1982189
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-0b27f220bd' 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