Moderate: Red Hat Software Collections security update

Topic

An update for rh-python38-python, rh-python38-python-lxml, and rh-python38-python-pip is now available for Red Hat Software Collections.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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.

Description

lxml is an XML processing library providing access to libxml2 and libxslt libraries using the Python ElementTree API.

Security Fix(es):

• python-lxml: HTML Cleaner allows crafted and SVG embedded scripts to pass through (CVE-2021-43818)

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.

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

Affected Products

• Red Hat Software Collections (for RHEL Server) 1 for RHEL 7 x86_64
• Red Hat Software Collections (for RHEL Server for System Z) 1 for RHEL 7 s390x
• Red Hat Software Collections (for RHEL Server for IBM Power LE) 1 for RHEL 7 ppc64le
• Red Hat Software Collections (for RHEL Workstation) 1 for RHEL 7 x86_64

Fixes

• BZ - 2032569 - CVE-2021-43818 python-lxml: HTML Cleaner allows crafted and SVG embedded scripts to pass through
• BZ - 2064443 - SCL Python 3.8: pip contains bundled pre-built exe files in site-packages/pip/_vendor/distlib/ [rhscl-3.8.z]
• BZ - 2068592 - Rebase the python3.8 interpreter to version 3.8.13 [rhscl-3.8.z]

CVEs

• CVE-2021-43818

References

• https://access.redhat.com/security/updates/classification/#moderate