A libss security update has been released for Fedora 33.

SECURITY: Fedora 33 Update: libss7-2.0.1-1.fc33

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Fedora Update Notification
FEDORA-2021-91d42ce83e
2021-09-04 19:35:10.085124
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Name : libss7
Product : Fedora 33
Version : 2.0.1
Release : 1.fc33
URL :   https://www.asterisk.org/
Summary : SS7 protocol services to applications
Description :
libss7 is a userspace library that is used for providing SS7 protocol
services to applications. It has a working MTP2, MTP3, and ISUP for ITU and
ANSI style SS7, however it was written in a manner that will easily allow
support for other various national specific variants in the future.

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Update Information:

Update to 2.0.1 (fix RHBZ#1998578); fix RHBZ#1932066 (unsafe use of strncpy)
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ChangeLog:

* Fri Aug 27 2021 Benjamin A. Beasley 2.0.1-1
- Update to 2.0.1 (fix RHBZ#1932066)
* Thu Jul 22 2021 Fedora Release Engineering 2.0.0-21
- Rebuilt for   https://fedoraproject.org/wiki/Fedora_35_Mass_Rebuild
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References:

[ 1 ] Bug #1932066 - Cannot build with -Werror=stringop-truncation
  https://bugzilla.redhat.com/show_bug.cgi?id=1932066
[ 2 ] Bug #1998578 - libss7-2.0.1 is available
  https://bugzilla.redhat.com/show_bug.cgi?id=1998578
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-91d42ce83e' 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