RHSA-2021:4158: Moderate: python-lxml security update
lxml is an XML processing library providing access to libxml2 and libxslt libraries using the Python ElementTree API. Security Fix(es): python-lxml: Missing input sanitization for formaction HTML5 attributes may lead to XSS (CVE-2021-28957) 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.Additional Changes:For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2021:4158?
The severity of RHSA-2021:4158 is classified as moderate.
How do I fix RHSA-2021:4158?
To fix RHSA-2021:4158, update the python-lxml package to version 4.2.3-3.el8 or later.
What type of vulnerability is addressed in RHSA-2021:4158?
RHSA-2021:4158 addresses a missing input sanitization vulnerability that could lead to XSS attacks.
Which software versions are affected by RHSA-2021:4158?
The affected software versions include python-lxml prior to 4.2.3-3.el8, including its debug and debug source packages.
What package is recommended to mitigate the issue in RHSA-2021:4158?
The recommended package to mitigate the issue in RHSA-2021:4158 is python-lxml version 4.2.3-3.el8.