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

SECURITY: Fedora 34 Update: mingw-binutils-2.34-8.fc34

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Fedora Update Notification
FEDORA-2021-7ca24ddc86
2021-04-24 20:00:51.079861
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Name : mingw-binutils
Product : Fedora 34
Version : 2.34
Release : 8.fc34
URL :   http://www.gnu.org/software/binutils/
Summary : Cross-compiled version of binutils for Win32 and Win64 environments
Description :
Cross compiled binutils (utilities like 'strip', 'as', 'ld') which
understand Windows executables and DLLs.

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Update Information:

Backport patch for CVE-2021-3487.
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ChangeLog:

* Mon Apr 12 2021 Sandro Mani - 2.34-8
- Backport fix for CVE-2021-3487
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References:

[ 1 ] Bug #1947970 - CVE-2021-3487 mingw-binutils: binutils: excessive debug section size can cause excessive memory consumption in bfd's dwarf2.c read_section() [fedora-all]
  https://bugzilla.redhat.com/show_bug.cgi?id=1947970
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-7ca24ddc86' 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