A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SProcXFixesCreatePointerBarrier function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
| Software | From | Fixed in |
|---|---|---|
| x.org / x_server | - | 1.20.14 |
| x.org / x_server | 21.1.1 | 21.1.1.x |
| x.org / x_server | 21.1.0 | 21.1.0.x |
| fedoraproject / fedora | 34 | 34.x |
| fedoraproject / fedora | 35 | 35.x |
| debian / debian_linux | 9.0 | 9.0.x |
| debian / debian_linux | 10.0 | 10.0.x |
| debian / debian_linux | 11.0 | 11.0.x |