xvfb-run 1.6.1 in Debian GNU/Linux, Ubuntu, Fedora 10, and possibly other operating systems place the magic cookie (MCOOKIE) on the command line, which allows local users to gain privileges by listing the process and its arguments.
{ "urgency": "low" }
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2009-1573.json"