Debian: DSA-4907-1: composer security update
Summary
For the stable distribution (buster), this problem has been fixed in
version 1.8.4-1+deb10u1.
We recommend that you upgrade your composer packages.
For the detailed security status of composer please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/composer
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/