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AUSCERT External Security Bulletin Redistribution
ESB-2021.2602
lasso security update
3 August 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: lasso
Publisher: Red Hat
Operating System: Red Hat
Impact/Access: Reduced Security -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2021-28091
Reference: ESB-2021.2595
ESB-2021.2105
Original Bulletin:
https://access.redhat.com/errata/RHSA-2021:2989
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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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