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.
| Software | From | Fixed in |
|---|---|---|
| debian / debian_linux | - | - |
| redhat / fedora | 10 | 10.x |
| ubuntu / linux | - | - |
| branden_robinson / xvfb-run | 1.6.1 | 1.6.1.x |