A lasso security update has been released for Fedora 34.

SECURITY: Fedora 34 Update: lasso-2.7.0-1.fc34

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Fedora Update Notification
FEDORA-2021-bb3ea1e191
2021-06-11 01:12:06.314121
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Name : lasso
Product : Fedora 34
Version : 2.7.0
Release : 1.fc34
URL :   http://lasso.entrouvert.org/
Summary : Liberty Alliance Single Sign On
Description :
Lasso is a library that implements the Liberty Alliance Single Sign On
standards, including the SAML and SAML2 specifications. It allows to handle
the whole life-cycle of SAML based Federations, and provides bindings
for multiple languages.

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Update Information:

CVE-2021-28091 lasso: XML signature wrapping vulnerability when parsing SAML
responses
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ChangeLog:

* Wed Jun 2 2021 Jakub Hrozek - 2.7.0
- Lasso 2.7.0
-   https://listes.entrouvert.com/arc/lasso/2021-06/msg00000.html
- don't package java bindings as they are not maintained upstream
anymore and there seem to be no users
- Resolves: rhbz#1966607 - CVE-2021-28091 lasso: XML signature wrapping
vulnerability when parsing SAML responses
* Sun May 23 2021 Jitka Plesnikova - 2.6.1-9
- Perl 5.34 rebuild
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References:

[ 1 ] Bug #1940089 - CVE-2021-28091 lasso: XML signature wrapping vulnerability when parsing SAML responses
  https://bugzilla.redhat.com/show_bug.cgi?id=1940089
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This update can be installed with the "dnf" update program. Use
su -c 'dnf upgrade --advisory FEDORA-2021-bb3ea1e191' 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