A node-css-what security update has been released for Debian GNU/Linux 10 LTS to address a regular expression denial of service (ReDoS) issue.

DLA 3350-1: node-css-what security update

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Debian LTS Advisory DLA-3350-1 debian-lts@lists.debian.org
  https://www.debian.org/lts/security/ Bastien Roucaries
March 03, 2023   https://wiki.debian.org/LTS
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Package : node-css-what
Version : 2.1.0-1
CVE ID : CVE-2022-21222 CVE-2021-33587
Debian Bug : #1032188

node-css-what was vulnerable to Regular Expression Denial of Service
(ReDoS) due to the usage of insecure regular expression in the
re_attr variable.
The exploitation of this vulnerability could be triggered
via the parse function.

For Debian 10 buster, this problem has been fixed in version
2.1.0-1+deb10u1.

We recommend that you upgrade your node-css-what packages.

For the detailed security status of node-css-what please refer to
its security tracker page at:
  https://security-tracker.debian.org/tracker/node-css-what

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at:   https://wiki.debian.org/LTS