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Fedora 33: FEDORA-2021-4cdb0f68c7 moderate: python-lxml XSS Issue

fedora
Calendar Grey June 3, 2021
Dist Fedora Esm H88
Debian Security Alert regarding python-lxml resolves CVE-2021-28957 linked to inadequate input validation and cross-site scripting vulnerabilities.
Fix CVE-2021-28957: missing input sanitization for formaction HTML5 attributes may lead to XSS

Summary

lxml is a Pythonic, mature binding for the libxml2 and libxslt libraries. It

provides safe and convenient access to these libraries using the ElementTree It

extends the ElementTree API significantly to offer support for XPath, RelaxNG,

XML Schema, XSLT, C14N and much more.To contact the project, go to the project

home page < or see our bug tracker at case you want to use the current ...

Fix CVE-2021-28957: missing input sanitization for formaction HTML5 attributes

may lead to XSS

* Fri May 21 2021 Charalampos Stratakis - 4.5.1-4

- Fix CVE-2021-28957: missing input sanitization for formaction HTML5 attributes may lead to XSS

- Resolves: rhbz#1941535

[ 1 ] Bug #1941534 - CVE-2021-28957 python-lxml: missing input sanitization for formaction HTML5 attributes may lead to XSS

https://bugzilla.redhat.com/show_bug.cgi?id=1941534

su -c 'dnf upgrade --advisory FEDORA-2021-4cdb0f68c7' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

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https://fedoraproject.org/security/

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Change Log

References

Update Instructions

Product: Fedora 33
Version: 4.5.1
Release: 4.fc33
Summary: XML processing library combining libxml2/libxslt with the ElementTree API

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