USN-4543-1: Sanitize vulnerability
25 September 2020
Sanitize could be made to perform XSS attacks if it received specially crafted input.
Releases
Packages
- ruby-sanitize - allowlist-based HTML and CSS sanitizer
Details
MichaĆ 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
The problem can be corrected by updating your system to the following package versions:
Ubuntu 20.04
In general, a standard system update will make all the necessary changes.