A flaw was found in xorg-x11-server in versions before 1.20.11. An integer underflow can occur in xserver which can lead to a local privilege escalation. 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 | - | 1.20.11 |
| fedoraproject / fedora | 32 | 32.x |
| fedoraproject / fedora | 33 | 33.x |
| fedoraproject / fedora | 34 | 34.x |
| debian / debian_linux | 9.0 | 9.0.x |
| debian / debian_linux | 10.0 | 10.0.x |
| redhat / enterprise_linux | 7.0 | 7.0.x |
| redhat / enterprise_linux | 8.0 | 8.0.x |