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OpenAdvisories
Medium ALAS2-2021-1666 1 CVE

Moderate: python-lxml security update (Amazon Linux 2)

Published Jun 16, 2021 · Updated Jun 22, 2021

Ecosystem: Amazon Linux

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2020-27783: A Cross-site Scripting (XSS) vulnerability was found in the python-lxml's clean module. The module's parser did not properly imitate browsers, causing different behaviors between the sanitizer and the user's page. This flaw allows a remote attacker to run arbitrary HTML/JS code. The highest threat from this vulnerability is to confidentiality and integrity. 1901633: CVE-2020-27783 python-lxml: mXSS due to the use of improper parser

Fixed packages 3

ReleasePackageFixed in
Amazon Linux · 2 python-lxml 0:3.2.1-4.amzn2.0.3
Amazon Linux · 2 python-lxml-debuginfo 0:3.2.1-4.amzn2.0.3
Amazon Linux · 2 python-lxml-docs 0:3.2.1-4.amzn2.0.3

Vulnerabilities 1

  • Medium 6.1
    CVE-2020-27783

    lxml vulnerable to Cross-site Scripting

    A XSS vulnerability was discovered in python-lxml's clean module. The module's parser didn't properly imitate browsers, which caused different behaviors between the sanitizer and the user's page. A remote attacker could exploit this flaw to run arbitrary HTML…

    lxml lxml python-lxml lxml Debian Ubuntu Azure Linux Alpine PyPI

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2020-27783.html