[SECURITY] [DLA 3566-1] ruby-rails-html-sanitizer security update

Debian LTS Advisory DLA-3566-1 [email protected]
https://www.debian.org/lts/security/ Sylvain Beucler
September 13, 2023 https://wiki.debian.org/LTS

Package : ruby-rails-html-sanitizer
Version : 1.0.4-1+deb10u2
CVE ID : CVE-2022-23517 CVE-2022-23518 CVE-2022-23519 CVE-2022-23520
Debian Bug : 1027153

Multiple vulnerabilities were discovered in Rails HTML Sanitizers, an
HTML sanitization library for Ruby on Rails applications. An attacker
could launch cross-site scripting (XSS) and denial-of-service (DoS)
attacks through crafted HTML/XML documents.

CVE-2022-23517

Certain configurations use an inefficient regular expression that
is susceptible to excessive backtracking when attempting to
sanitize certain SVG attributes. This may lead to a denial of
service through CPU resource consumption.

CVE-2022-23518

Cross-site scripting via data URIs when used in combination with
Loofah >= 2.1.0.

CVE-2022-23519

XSS vulnerability with certain configurations of
Rails::Html::Sanitizer may allow an attacker to inject content if
the application developer has overridden the sanitizer's allowed
tags in either of the following ways: allow both "math" and
"style" elements, or allow both "svg" and "style" elements.

CVE-2022-23520

XSS vulnerability with certain configurations of
Rails::Html::Sanitizer due to an incomplete fix of
CVE-2022-32209. Rails::Html::Sanitizer may allow an attacker to
inject content if the application developer has overridden the
sanitizer's allowed tags to allow both "select" and "style"
elements.

For Debian 10 buster, these problems have been fixed in version
1.0.4-1+deb10u2.

We recommend that you upgrade your ruby-rails-html-sanitizer packages.

For the detailed security status of ruby-rails-html-sanitizer please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/ruby-rails-html-sanitizer

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS