A librecad security update has been released for Fedora 34.

SECURITY: Fedora 34 Update: librecad-2.2.0-0.11.rc2.fc34

--------------------------------------------------------------------------------
Fedora Update Notification
FEDORA-2021-67c946a9f3
2021-12-01 01:12:49.872874
--------------------------------------------------------------------------------

Name : librecad
Product : Fedora 34
Version : 2.2.0
Release : 0.11.rc2.fc34
URL :   http://librecad.org/
Summary : Computer Assisted Design (CAD) Application
Description :
A graphical and comprehensive 2D CAD application.

--------------------------------------------------------------------------------
Update Information:

Update libdxfrw to 1.0.1 (from upstream git). Rebuild librecad against it. This
fixes CVE-2021-21898, CVE-2021-21899, and CVE-2021-21900.
--------------------------------------------------------------------------------
ChangeLog:

* Mon Nov 22 2021 Tom Callaway - 2.2.0-0.11.rc2
- rebuild against new libdxfrw
- rebase to 1d31427
* Thu Jul 22 2021 Fedora Release Engineering - 2.2.0-0.10.rc2
- Rebuilt for   https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild
--------------------------------------------------------------------------------
References:

[ 1 ] Bug #2025628 - CVE-2021-21899 librecad: heap out-of-bounds write in dwgCompressor:copyCompBytes21
  https://bugzilla.redhat.com/show_bug.cgi?id=2025628
[ 2 ] Bug #2025631 - CVE-2021-21900 librecad: use-after-free in dxfRW:processLType()
  https://bugzilla.redhat.com/show_bug.cgi?id=2025631
[ 3 ] Bug #2025634 - CVE-2021-21898 librecad: out-of-bounds write in dwgCompressor:decompress18()
  https://bugzilla.redhat.com/show_bug.cgi?id=2025634
--------------------------------------------------------------------------------

This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-67c946a9f3' 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
--------------------------------------------------------------------------------
_______________________________________________