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Red Hat: RHSA-2021-2989-01 Important: Lasso XML Signature Update

red hat
Calendar Grey August 2, 2021
Dist Redhat Esm H88
A crucial lasso security patch has now been released for Red Hat Enterprise Linux 7, targeting serious vulnerabilities.
An update for lasso is now available for Red Hat Enterprise Linux 7

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

Summary

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.

Topics%20covered

Topics Covered

security advisory security update Red Hat important lasso XML signature CVE-2021-28091

References

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

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

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

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

Topic

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 impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security update Red Hat important lasso XML signature CVE-2021-28091

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

Bugs Fixed

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

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