=========================================================================Ubuntu Security Notice USN-6065-1
May 10, 2023

node-css-what vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 20.04 ESM
- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM

Summary:

Several security issues were fixed in css-what.

Software Description:
- node-css-what: A CSS selector parser

Details:

It was discovered that css-what incorrectly handled certain inputs. If a 
user
or an automated system were tricked into opening a specially crafted input
file, a remote attacker could possibly use this issue to cause a denial of
service. (CVE-2021-33587, CVE-2022-21222)

Update instructions:

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

Ubuntu 20.04 ESM:
   node-css-what                   3.2.1-1ubuntu0.1~esm1

Ubuntu 18.04 LTS:
   node-css-what                   2.1.0-1+deb10u1build0.18.04.1

Ubuntu 16.04 ESM:
   node-css-what                   2.1.0-1ubuntu0.16.04.1~esm1

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

References:
   https://ubuntu.com/security/notices/USN-6065-1
   CVE-2021-33587, CVE-2022-21222

Package Information:
 
https://launchpad.net/ubuntu/+source/node-css-what/2.1.0-1+deb10u1build0.18.04.1