A vulnerability was found in X.Org. This security flaw occurs because the handler for the XvdiSelectVideoNotify request may write to memory after it has been freed. This issue can lead to local privileges elevation on systems where the X se
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| X_server | X.org | 1.20.4 (including) | 1.20.4 (including) |
| Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION | RedHat | tigervnc-0:1.1.0-25.el6_10.13 | * |
| Red Hat Enterprise Linux 7 | RedHat | tigervnc-0:1.8.0-23.el7_9 | * |
| Red Hat Enterprise Linux 7 | RedHat | xorg-x11-server-0:1.20.4-21.el7_9 | * |
| Red Hat Enterprise Linux 8 | RedHat | xorg-x11-server-Xwayland-0:21.1.3-10.el8 | * |
| Red Hat Enterprise Linux 8 | RedHat | xorg-x11-server-0:1.20.11-15.el8 | * |
| Red Hat Enterprise Linux 8 | RedHat | tigervnc-0:1.12.0-15.el8_8 | * |
| Red Hat Enterprise Linux 9 | RedHat | xorg-x11-server-0:1.20.11-17.el9 | * |
| Red Hat Enterprise Linux 9 | RedHat | xorg-x11-server-Xwayland-0:21.1.3-7.el9 | * |
| Red Hat Enterprise Linux 9 | RedHat | tigervnc-0:1.12.0-13.el9_2 | * |
| Xorg-server | Ubuntu | bionic | * |
| Xorg-server | Ubuntu | devel | * |
| Xorg-server | Ubuntu | esm-infra-legacy/trusty | * |
| Xorg-server | Ubuntu | esm-infra/bionic | * |
| Xorg-server | Ubuntu | esm-infra/focal | * |
| Xorg-server | Ubuntu | esm-infra/xenial | * |
| Xorg-server | Ubuntu | focal | * |
| Xorg-server | Ubuntu | jammy | * |
| Xorg-server | Ubuntu | kinetic | * |
| Xorg-server | Ubuntu | lunar | * |
| Xorg-server | Ubuntu | trusty | * |
| Xorg-server | Ubuntu | trusty/esm | * |
| Xorg-server | Ubuntu | xenial | * |
| Xorg-server-hwe-16.04 | Ubuntu | esm-infra/xenial | * |
| Xorg-server-hwe-16.04 | Ubuntu | xenial | * |
| Xorg-server-hwe-18.04 | Ubuntu | bionic | * |
| Xorg-server-hwe-18.04 | Ubuntu | esm-infra/bionic | * |
| Xorg-server-lts-utopic | Ubuntu | trusty | * |
| Xorg-server-lts-vivid | Ubuntu | trusty | * |
| Xorg-server-lts-wily | Ubuntu | trusty | * |
| Xorg-server-lts-xenial | Ubuntu | trusty | * |
| Xwayland | Ubuntu | devel | * |
| Xwayland | Ubuntu | jammy | * |
| Xwayland | Ubuntu | kinetic | * |
| Xwayland | Ubuntu | lunar | * |