The SProcXFixesSelectSelectionInput function in the XFixes extension in X.Org X Window System (aka X11 or X) X11R6.8.0 and X.Org Server (aka xserver and xorg-server) before 1.16.3 allows remote authenticated users to cause a denial of service (out-of-bounds read or write) or possibly execute arbitrary code via a crafted length value.
| Software | From | Fixed in |
|---|---|---|
| x.org / x11 | 6.8 | 6.8.x |
| debian / debian_linux | 7.0 | 7.0.x |
| x.org / x_server | - | 1.16.2.99.901.x |