Описание
Security update for python-lxml
This update for python-lxml fixes the following issues:
- CVE-2018-19787: Fixed XSS vulnerability via unescaped URL (bsc#1118088).
- CVE-2021-28957: Fixed XSS vulnerability ia HTML5 attributes unescaped (bsc#1184177).
- CVE-2021-43818: Fixed XSS vulnerability via script content in SVG images using data URIs (bnc#1193752).
- CVE-2020-27783: Fixed mutation XSS with improper parser use (bnc#1179534).
Список пакетов
openSUSE Leap 15.3
Ссылки
- E-Mail link for openSUSE-SU-2022:0803-1
- SUSE Security Ratings
- SUSE Bug 1118088
- SUSE Bug 1179534
- SUSE Bug 1184177
- SUSE Bug 1193752
- SUSE CVE CVE-2018-19787 page
- SUSE CVE CVE-2020-27783 page
- SUSE CVE CVE-2021-28957 page
- SUSE CVE CVE-2021-43818 page
Описание
An issue was discovered in lxml before 4.2.5. lxml/html/clean.py in the lxml.html.clean module does not remove javascript: URLs that use escaping, allowing a remote attacker to conduct XSS attacks, as demonstrated by "j a v a s c r i p t:" in Internet Explorer. This is a similar issue to CVE-2014-3146.
Затронутые продукты
Ссылки
- CVE-2018-19787
- SUSE Bug 1118088
Описание
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/JS code.
Затронутые продукты
Ссылки
- CVE-2020-27783
- SUSE Bug 1179534
Описание
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.
Затронутые продукты
Ссылки
- CVE-2021-28957
- SUSE Bug 1184177
Описание
lxml is a library for processing XML and HTML in the Python language. Prior to version 4.6.5, the HTML Cleaner in lxml.html lets certain crafted script content pass through, as well as script content in SVG files embedded using data URIs. Users that employ the HTML cleaner in a security relevant context should upgrade to lxml 4.6.5 to receive a patch. There are no known workarounds available.
Затронутые продукты
Ссылки
- CVE-2021-43818
- SUSE Bug 1193752