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Ubuntu 16.04 LTS: USN-4498-1 Critical Loofah XSS Security Advisory

ubuntu
Calendar Grey September 15, 2020
Dist Ubuntu Esm H88
The Ubuntu Security Notice USN-4500-1 highlights a vulnerability in the OpenSSL library that could potentially permit remote code execution via malformed Cert files.
Loofah could be made to perform XSS attacks if a crafted SVG element is republished

Summary

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

republished

Software Description:

- 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)

Topics%20covered

Topics Covered

security advisory software update ubuntu ruby xss attack sanitization issue loofah

Update Instructions

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

Ubuntu 16.04 LTS:
  ruby-loofah                     2.0.3-2+deb9u3build0.16.04.1

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

References

https://ubuntu.com/security/notices/USN-4498-1

CVE-2019-15587

Severity
critical
Lowest
Low
Medium
High
Critical

September 15, 2020

Topics%20covered

Topics Covered

security advisory software update ubuntu ruby xss attack sanitization issue loofah

Package Information

https://launchpad.net/ubuntu/+source/ruby-loofah/2.0.3-2+deb9u3build0.16.04.1

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