Ubuntu Security Notices
USN-4498-1

USN-4498-1: Loofah vulnerability

Publication date

15 September 2020

Overview

Loofah could be made to perform XSS attacks if a crafted SVG element is republished

Releases

16.04 LTS

Packages

ruby-loofah - manipulation and transformation of HTML/XML documents and fragments

Details

It was discovered that Loofah does not properly sanitize JavaScript in
sanitized output. An attacker could possibly use this issue to perform
XSS attacks. (CVE-2019-15587)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release	Package Version
16.04 xenial	ruby-loofah – 2.0.3-2+deb9u3build0.16.04.1

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Get Ubuntu Pro

References

CVE-2019-15587

CVE-2019-15587