1. Ubuntu Security Notices
  2. USN-4543-1

USN-4543-1: Sanitize vulnerability

Publication date

25 September 2020

Overview

Sanitize could be made to perform XSS attacks if it received specially crafted input.

Releases

Packages

Details

Michał Bentkowski discovered that Sanitize did not properly sanitize some
math or svg HTML under certain circumstances. A remote attacker could
potentially exploit this to conduct cross-site scripting (XSS) attacks.
(CVE-2020-4054)

Michał Bentkowski discovered that Sanitize did not properly sanitize some
math or svg HTML under certain circumstances. A remote attacker could
potentially exploit this to conduct cross-site scripting (XSS) attacks.
(CVE-2020-4054)

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
20.04 focal ruby-sanitize –  4.6.6-2.1~0.20.04.1

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References

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