Ubuntu 22.04 LTS: USN-6748-1 Moderate: ruby-sanitize XSS Threat

ubuntu

April 24, 2024

Several security issues were fixed in Sanitize.

Summary

Several security issues were fixed in Sanitize.

Software Description:

- ruby-sanitize: Allowlist-based HTML and CSS sanitizer

Details:

It was discovered that Sanitize incorrectly handled noscript elements

under certain circumstances. An attacker could possibly use this issue to

execute a cross-site scripting (XSS) attack. This issue only affected

Ubuntu 22.04 LTS. (CVE-2023-23627)

It was discovered that Sanitize incorrectly handled style elements under

certain circumstances. An attacker could possibly use this issue to

execute a cross-site scripting (XSS) attack. (CVE-2023-36823)

Topics Covered

security advisory software update cross-site scripting moderate severity ubuntu XSS risk ruby-sanitize

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 23.10:
   ruby-sanitize                   6.0.0-1.1ubuntu0.23.10.1

Ubuntu 22.04 LTS:
   ruby-sanitize                   6.0.0-1ubuntu0.1

Ubuntu 20.04 LTS:
   ruby-sanitize                   4.6.6-2.1~0.20.04.2

In general, a standard system update will make all the necessary changes.