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USN-4543-1: Sanitize vulnerability

25 September 2020

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




MichaƂ 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.

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.