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====================================================================                   
Red Hat Security Advisory

Synopsis:          Important: lasso security update
Advisory ID:       RHSA-2021:2989-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:2989
Issue date:        2021-08-02
CVE Names:         CVE-2021-28091
====================================================================
1. Summary:

An update for lasso is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

3. Description:

The lasso packages provide the Lasso library that implements the Liberty
Alliance Single Sign-On standards, including the SAML and SAML2
specifications. It allows handling of the whole life-cycle of SAML-based
federations and provides bindings for multiple languages.

Security Fix(es):

* lasso: XML signature wrapping vulnerability when parsing SAML responses
(CVE-2021-28091)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

5. Bugs fixed (https://bugzilla.redhat.com/):

1940089 - CVE-2021-28091 lasso: XML signature wrapping vulnerability when parsing SAML responses

6. Package List:

Red Hat Enterprise Linux Server (v. 7):

Source:
lasso-2.5.1-8.el7_9.src.rpm

ppc64:
lasso-2.5.1-8.el7_9.ppc.rpm
lasso-2.5.1-8.el7_9.ppc64.rpm
lasso-debuginfo-2.5.1-8.el7_9.ppc.rpm
lasso-debuginfo-2.5.1-8.el7_9.ppc64.rpm
lasso-python-2.5.1-8.el7_9.ppc64.rpm

ppc64le:
lasso-2.5.1-8.el7_9.ppc64le.rpm
lasso-debuginfo-2.5.1-8.el7_9.ppc64le.rpm
lasso-python-2.5.1-8.el7_9.ppc64le.rpm

s390x:
lasso-2.5.1-8.el7_9.s390.rpm
lasso-2.5.1-8.el7_9.s390x.rpm
lasso-debuginfo-2.5.1-8.el7_9.s390.rpm
lasso-debuginfo-2.5.1-8.el7_9.s390x.rpm
lasso-python-2.5.1-8.el7_9.s390x.rpm

x86_64:
lasso-2.5.1-8.el7_9.i686.rpm
lasso-2.5.1-8.el7_9.x86_64.rpm
lasso-debuginfo-2.5.1-8.el7_9.i686.rpm
lasso-debuginfo-2.5.1-8.el7_9.x86_64.rpm
lasso-python-2.5.1-8.el7_9.x86_64.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
lasso-debuginfo-2.5.1-8.el7_9.ppc.rpm
lasso-debuginfo-2.5.1-8.el7_9.ppc64.rpm
lasso-devel-2.5.1-8.el7_9.ppc.rpm
lasso-devel-2.5.1-8.el7_9.ppc64.rpm

ppc64le:
lasso-debuginfo-2.5.1-8.el7_9.ppc64le.rpm
lasso-devel-2.5.1-8.el7_9.ppc64le.rpm

s390x:
lasso-debuginfo-2.5.1-8.el7_9.s390.rpm
lasso-debuginfo-2.5.1-8.el7_9.s390x.rpm
lasso-devel-2.5.1-8.el7_9.s390.rpm
lasso-devel-2.5.1-8.el7_9.s390x.rpm

x86_64:
lasso-debuginfo-2.5.1-8.el7_9.i686.rpm
lasso-debuginfo-2.5.1-8.el7_9.x86_64.rpm
lasso-devel-2.5.1-8.el7_9.i686.rpm
lasso-devel-2.5.1-8.el7_9.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
lasso-2.5.1-8.el7_9.src.rpm

x86_64:
lasso-2.5.1-8.el7_9.i686.rpm
lasso-2.5.1-8.el7_9.x86_64.rpm
lasso-debuginfo-2.5.1-8.el7_9.i686.rpm
lasso-debuginfo-2.5.1-8.el7_9.x86_64.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

x86_64:
lasso-debuginfo-2.5.1-8.el7_9.i686.rpm
lasso-debuginfo-2.5.1-8.el7_9.x86_64.rpm
lasso-devel-2.5.1-8.el7_9.i686.rpm
lasso-devel-2.5.1-8.el7_9.x86_64.rpm
lasso-python-2.5.1-8.el7_9.x86_64.rpm

These packages are GPG signed by Red Hat for security.  Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/

7. References:

https://access.redhat.com/security/cve/CVE-2021-28091
https://access.redhat.com/security/updates/classification/#important

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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