Amazon Linux 2 Security Advisory: ALAS-2021-1666
Advisory Release Date: 2021-06-16 20:37 Pacific
Advisory Updated Date: 2021-06-22 22:40 Pacific
Severity:
Medium
Issue Overview:
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. (CVE-2020-27783)
Affected Packages:
python-lxml
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update python-lxml to update your system.
New Packages:
aarch64:
python-lxml-3.2.1-4.amzn2.0.3.aarch64
python-lxml-debuginfo-3.2.1-4.amzn2.0.3.aarch64
i686:
python-lxml-3.2.1-4.amzn2.0.3.i686
python-lxml-debuginfo-3.2.1-4.amzn2.0.3.i686
noarch:
python-lxml-docs-3.2.1-4.amzn2.0.3.noarch
src:
python-lxml-3.2.1-4.amzn2.0.3.src
x86_64:
python-lxml-3.2.1-4.amzn2.0.3.x86_64
python-lxml-debuginfo-3.2.1-4.amzn2.0.3.x86_64