RHSA-2021:1898: Moderate: python-lxml security update
First published: Tue May 18 2021(Updated: )
lxml is an XML processing library providing access to libxml2 and libxslt libraries using the Python ElementTree API. <br>Security Fix(es):<br><li> python-lxml: mXSS due to the use of improper parser (CVE-2020-27783)</li> 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.<br>Additional Changes:<br>For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from the References section.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/python-lxml | <4.2.3-2.el8 | 4.2.3-2.el8 |
| redhat/python-lxml-debugsource | <4.2.3-2.el8 | 4.2.3-2.el8 |
| redhat/python3-lxml | <4.2.3-2.el8 | 4.2.3-2.el8 |
| redhat/python3-lxml-debuginfo | <4.2.3-2.el8 | 4.2.3-2.el8 |
| redhat/python-lxml-debugsource | <4.2.3-2.el8 | 4.2.3-2.el8 |
| redhat/python3-lxml | <4.2.3-2.el8 | 4.2.3-2.el8 |
| redhat/python3-lxml-debuginfo | <4.2.3-2.el8 | 4.2.3-2.el8 |
| redhat/python-lxml-debugsource | <4.2.3-2.el8 | 4.2.3-2.el8 |
| redhat/python3-lxml | <4.2.3-2.el8 | 4.2.3-2.el8 |
| redhat/python3-lxml-debuginfo | <4.2.3-2.el8 | 4.2.3-2.el8 |
| redhat/python-lxml-debugsource | <4.2.3-2.el8.aa | 4.2.3-2.el8.aa |
| redhat/python3-lxml | <4.2.3-2.el8.aa | 4.2.3-2.el8.aa |
| redhat/python3-lxml-debuginfo | <4.2.3-2.el8.aa | 4.2.3-2.el8.aa |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2021:1898?
The severity of RHSA-2021:1898 is classified as moderate.
How do I fix RHSA-2021:1898?
To fix RHSA-2021:1898, upgrade to python-lxml version 4.2.3-2.el8 or later.
What vulnerability does RHSA-2021:1898 address?
RHSA-2021:1898 addresses a mXSS vulnerability due to the use of an improper parser, identified as CVE-2020-27783.
Which packages are affected by RHSA-2021:1898?
Affected packages include python-lxml, python3-lxml, and their respective debug sources in versions less than 4.2.3-2.el8.
Is there a specific version that resolves RHSA-2021:1898?
Yes, upgrading to python-lxml version 4.2.3-2.el8 or higher resolves RHSA-2021:1898.
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