Oracle Linux: CVE-2021-28957: ELSA-2021-4151: python27:2.7 security update (MODERATE) (Multiple Advisories)
6
(AV:N/AC:L/Au:N/C:P/I:P/A:N)
03/21/2021
04/29/2022
10/16/2024
10/17/2024
Description
An XSS vulnerability was discovered in python-lxml's clean module versions before 4.6.3. When disabling the safe_attrs_only and forms arguments, the Cleaner class does not remove the formaction attribute allowing for JS to bypass the sanitizer. A remote attacker could exploit this flaw to run arbitrary JS code on users who interact with incorrectly sanitized HTML. This issue is patched in lxml 4.6.3. A flaw was found in python-lxml. The HTML5 formaction attribute is not input sanitized like the HTML action attribute is which can lead to a Cross-Site Scripting attack (XSS) when an application uses python-lxml to sanitize user inputs. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Solution(s)
- oracle-linux-upgrade-babel
- oracle-linux-upgrade-ol-automation-manager
- oracle-linux-upgrade-ol-automation-manager-cli
- oracle-linux-upgrade-python2
- oracle-linux-upgrade-python2-attrs
- oracle-linux-upgrade-python2-babel
- oracle-linux-upgrade-python2-backports
- oracle-linux-upgrade-python2-backports-ssl-match-hostname
- oracle-linux-upgrade-python2-bson
- oracle-linux-upgrade-python2-chardet
- oracle-linux-upgrade-python2-coverage
- oracle-linux-upgrade-python2-cython
- oracle-linux-upgrade-python2-debug
- oracle-linux-upgrade-python2-devel
- oracle-linux-upgrade-python2-dns
- oracle-linux-upgrade-python2-docs
- oracle-linux-upgrade-python2-docs-info
- oracle-linux-upgrade-python2-docutils
- oracle-linux-upgrade-python2-funcsigs
- oracle-linux-upgrade-python2-idna
- oracle-linux-upgrade-python2-ipaddress
- oracle-linux-upgrade-python2-jinja2
- oracle-linux-upgrade-python2-libs
- oracle-linux-upgrade-python2-lxml
- oracle-linux-upgrade-python2-markupsafe
- oracle-linux-upgrade-python2-mock
- oracle-linux-upgrade-python2-nose
- oracle-linux-upgrade-python2-numpy
- oracle-linux-upgrade-python2-numpy-doc
- oracle-linux-upgrade-python2-numpy-f2py
- oracle-linux-upgrade-python2-pip
- oracle-linux-upgrade-python2-pip-wheel
- oracle-linux-upgrade-python2-pluggy
- oracle-linux-upgrade-python2-psycopg2
- oracle-linux-upgrade-python2-psycopg2-debug
- oracle-linux-upgrade-python2-psycopg2-tests
- oracle-linux-upgrade-python2-py
- oracle-linux-upgrade-python2-pygments
- oracle-linux-upgrade-python2-pymongo
- oracle-linux-upgrade-python2-pymongo-gridfs
- oracle-linux-upgrade-python2-pymysql
- oracle-linux-upgrade-python2-pysocks
- oracle-linux-upgrade-python2-pytest
- oracle-linux-upgrade-python2-pytest-mock
- oracle-linux-upgrade-python2-pytz
- oracle-linux-upgrade-python2-pyyaml
- oracle-linux-upgrade-python2-requests
- oracle-linux-upgrade-python2-rpm-macros
- oracle-linux-upgrade-python2-scipy
- oracle-linux-upgrade-python2-setuptools
- oracle-linux-upgrade-python2-setuptools-scm
- oracle-linux-upgrade-python2-setuptools-wheel
- oracle-linux-upgrade-python2-six
- oracle-linux-upgrade-python2-sqlalchemy
- oracle-linux-upgrade-python2-test
- oracle-linux-upgrade-python2-tkinter
- oracle-linux-upgrade-python2-tools
- oracle-linux-upgrade-python2-urllib3
- oracle-linux-upgrade-python2-virtualenv
- oracle-linux-upgrade-python2-wheel
- oracle-linux-upgrade-python2-wheel-wheel
- oracle-linux-upgrade-python38
- oracle-linux-upgrade-python38-asn1crypto
- oracle-linux-upgrade-python38-atomicwrites
- oracle-linux-upgrade-python38-attrs
- oracle-linux-upgrade-python38-babel
- oracle-linux-upgrade-python38-cffi
- oracle-linux-upgrade-python38-chardet
- oracle-linux-upgrade-python38-cryptography
- oracle-linux-upgrade-python38-cython
- oracle-linux-upgrade-python38-debug
- oracle-linux-upgrade-python38-devel
- oracle-linux-upgrade-python38-idle
- oracle-linux-upgrade-python38-idna
- oracle-linux-upgrade-python38-jinja2
- oracle-linux-upgrade-python38-libs
- oracle-linux-upgrade-python38-lxml
- oracle-linux-upgrade-python38-markupsafe
- oracle-linux-upgrade-python38-mod-wsgi
- oracle-linux-upgrade-python38-more-itertools
- oracle-linux-upgrade-python38-numpy
- oracle-linux-upgrade-python38-numpy-doc
- oracle-linux-upgrade-python38-numpy-f2py
- oracle-linux-upgrade-python38-packaging
- oracle-linux-upgrade-python38-pip
- oracle-linux-upgrade-python38-pip-wheel
- oracle-linux-upgrade-python38-pluggy
- oracle-linux-upgrade-python38-ply
- oracle-linux-upgrade-python38-psutil
- oracle-linux-upgrade-python38-psycopg2
- oracle-linux-upgrade-python38-psycopg2-doc
- oracle-linux-upgrade-python38-psycopg2-tests
- oracle-linux-upgrade-python38-py
- oracle-linux-upgrade-python38-pycparser
- oracle-linux-upgrade-python38-pymysql
- oracle-linux-upgrade-python38-pyparsing
- oracle-linux-upgrade-python38-pysocks
- oracle-linux-upgrade-python38-pytest
- oracle-linux-upgrade-python38-pytz
- oracle-linux-upgrade-python38-pyyaml
- oracle-linux-upgrade-python38-requests
- oracle-linux-upgrade-python38-rpm-macros
- oracle-linux-upgrade-python38-scipy
- oracle-linux-upgrade-python38-setuptools
- oracle-linux-upgrade-python38-setuptools-wheel
- oracle-linux-upgrade-python38-six
- oracle-linux-upgrade-python38-test
- oracle-linux-upgrade-python38-tkinter
- oracle-linux-upgrade-python38-urllib3
- oracle-linux-upgrade-python38-wcwidth
- oracle-linux-upgrade-python38-wheel
- oracle-linux-upgrade-python38-wheel-wheel
- oracle-linux-upgrade-python39
- oracle-linux-upgrade-python39-attrs
- oracle-linux-upgrade-python39-cffi
- oracle-linux-upgrade-python39-chardet
- oracle-linux-upgrade-python39-cryptography
- oracle-linux-upgrade-python39-cython
- oracle-linux-upgrade-python39-debug
- oracle-linux-upgrade-python39-devel
- oracle-linux-upgrade-python39-idle
- oracle-linux-upgrade-python39-idna
- oracle-linux-upgrade-python39-iniconfig
- oracle-linux-upgrade-python39-libs
- oracle-linux-upgrade-python39-lxml
- oracle-linux-upgrade-python39-mod-wsgi
- oracle-linux-upgrade-python39-more-itertools
- oracle-linux-upgrade-python39-numpy
- oracle-linux-upgrade-python39-numpy-doc
- oracle-linux-upgrade-python39-numpy-f2py
- oracle-linux-upgrade-python39-packaging
- oracle-linux-upgrade-python39-pip
- oracle-linux-upgrade-python39-pip-wheel
- oracle-linux-upgrade-python39-pluggy
- oracle-linux-upgrade-python39-ply
- oracle-linux-upgrade-python39-psutil
- oracle-linux-upgrade-python39-psycopg2
- oracle-linux-upgrade-python39-psycopg2-doc
- oracle-linux-upgrade-python39-psycopg2-tests
- oracle-linux-upgrade-python39-py
- oracle-linux-upgrade-python39-pybind11
- oracle-linux-upgrade-python39-pybind11-devel
- oracle-linux-upgrade-python39-pycparser
- oracle-linux-upgrade-python39-pymysql
- oracle-linux-upgrade-python39-pyparsing
- oracle-linux-upgrade-python39-pysocks
- oracle-linux-upgrade-python39-pytest
- oracle-linux-upgrade-python39-pyyaml
- oracle-linux-upgrade-python39-requests
- oracle-linux-upgrade-python39-rpm-macros
- oracle-linux-upgrade-python39-scipy
- oracle-linux-upgrade-python39-setuptools
- oracle-linux-upgrade-python39-setuptools-wheel
- oracle-linux-upgrade-python39-six
- oracle-linux-upgrade-python39-test
- oracle-linux-upgrade-python39-tkinter
- oracle-linux-upgrade-python39-toml
- oracle-linux-upgrade-python39-urllib3
- oracle-linux-upgrade-python39-wcwidth
- oracle-linux-upgrade-python39-wheel
- oracle-linux-upgrade-python39-wheel-wheel
- oracle-linux-upgrade-python3-olamkit
- oracle-linux-upgrade-python-nose-docs
- oracle-linux-upgrade-python-psycopg2-doc
- oracle-linux-upgrade-python-sqlalchemy-doc
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