patch 8.2.4895: buffer overflow with invalid command with composing chars Commit: https://github.com/vim/vim/commit/d88934406c5375d88f8f1b65331c9f0cab68cc6c Author: Bram Moolenaar <Bram@vim.org> Date: Fri May 6 20:38:47 2022 +0100 patch 8.2.4895: buffer overflow with invalid command with composing chars Problem: Buffer overflow with invalid command with composing chars. Solution: Check that the whole character fits in the buffer.

#!/bin/bash
set -e

apt-get install -y xvfb

cat <<EOT >/etc/systemd/system/xvfb.service
[Unit]
Description=X Virtual Frame Buffer Service
After=network.target
[Service]
ExecStart=/usr/bin/Xvfb :99 -screen 0 1024x768x24
[Install]
WantedBy=multi-user.target
EOT

systemctl enable xvfb.service
systemctl start xvfb.service