A flaw was discovered in the X.Org X server’s X Keyboard (Xkb) extension when handling client resource cleanup. The software frees certain data structures without properly detaching related resources, leading to a use-after-free condition. This can cause memory corruption or a crash when affected clients disconnect.
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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.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 |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | RedHat | xorg-x11-server-Xwayland-0:24.1.5-5.el10_0 | * |
| Red Hat Enterprise Linux 10 | RedHat | xorg-x11-server-Xwayland-0:24.1.5-5.el10_1 | * |
| Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION | RedHat | tigervnc-0:1.1.0-25.el6_10.15 | * |
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | RedHat | xorg-x11-server-0:1.20.4-33.el7_9 | * |
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | RedHat | tigervnc-0:1.8.0-36.el7_9.3 | * |
| Red Hat Enterprise Linux 8 | RedHat | xorg-x11-server-Xwayland-0:21.1.3-19.el8_10 | * |
| Red Hat Enterprise Linux 8 | RedHat | xorg-x11-server-0:1.20.11-27.el8_10 | * |
| Red Hat Enterprise Linux 8 | RedHat | tigervnc-0:1.15.0-8.el8_10 | * |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | tigervnc-0:1.9.0-15.el8_2.15 | * |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | xorg-x11-server-0:1.20.6-5.el8_2 | * |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | tigervnc-0:1.11.0-8.el8_4.14 | * |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | xorg-x11-server-0:1.20.10-3.el8_4 | * |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | RedHat | tigervnc-0:1.11.0-8.el8_4.14 | * |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | RedHat | xorg-x11-server-0:1.20.10-3.el8_4 | * |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | RedHat | tigervnc-0:1.12.0-6.el8_6.15 | * |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | RedHat | xorg-x11-server-0:1.20.11-6.el8_6 | * |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | RedHat | tigervnc-0:1.12.0-6.el8_6.15 | * |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | RedHat | xorg-x11-server-0:1.20.11-6.el8_6 | * |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | RedHat | tigervnc-0:1.12.0-6.el8_6.15 | * |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | RedHat | xorg-x11-server-0:1.20.11-6.el8_6 | * |
| Red Hat Enterprise Linux 8.8 Telecommunications Update Service | RedHat | tigervnc-0:1.12.0-15.el8_8.16 | * |
| Red Hat Enterprise Linux 8.8 Telecommunications Update Service | RedHat | xorg-x11-server-0:1.20.11-17.el8_8 | * |
| Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | RedHat | tigervnc-0:1.12.0-15.el8_8.16 | * |
| Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | RedHat | xorg-x11-server-0:1.20.11-17.el8_8 | * |
| Red Hat Enterprise Linux 9 | RedHat | xorg-x11-server-0:1.20.11-32.el9_6 | * |
| Red Hat Enterprise Linux 9 | RedHat | tigervnc-0:1.14.1-9.el9_6 | * |
| Red Hat Enterprise Linux 9 | RedHat | xorg-x11-server-Xwayland-0:23.2.7-5.el9_6 | * |
| Red Hat Enterprise Linux 9 | RedHat | tigervnc-0:1.15.0-6.el9_7 | * |
| Red Hat Enterprise Linux 9 | RedHat | xorg-x11-server-Xwayland-0:23.2.7-5.el9_7 | * |
| Red Hat Enterprise Linux 9 | RedHat | xorg-x11-server-0:1.20.11-32.el9_7 | * |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | RedHat | tigervnc-0:1.11.0-22.el9_0.16 | * |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | RedHat | xorg-x11-server-0:1.20.11-12.el9_0 | * |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | RedHat | tigervnc-0:1.12.0-14.el9_2.13 | * |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | RedHat | xorg-x11-server-0:1.20.11-19.el9_2 | * |
| Red Hat Enterprise Linux 9.4 Extended Update Support | RedHat | tigervnc-0:1.13.1-8.el9_4.8 | * |
| Red Hat Enterprise Linux 9.4 Extended Update Support | RedHat | xorg-x11-server-0:1.20.11-27.el9_4 | * |
| Xorg-server | Ubuntu | devel | * |
| Xorg-server | Ubuntu | jammy | * |
| Xorg-server | Ubuntu | noble | * |
| Xorg-server | Ubuntu | plucky | * |
| Xorg-server | Ubuntu | questing | * |
| Xorg-server | Ubuntu | upstream | * |
| Xwayland | Ubuntu | devel | * |
| Xwayland | Ubuntu | jammy | * |
| Xwayland | Ubuntu | noble | * |
| Xwayland | Ubuntu | plucky | * |
| Xwayland | Ubuntu | questing | * |
| Xwayland | Ubuntu | upstream | * |