A flaw was found in the X servers request handling. Non-zero bytes to ignore in a clients request can cause the server to skip processing another clients request, potentially leading to a denial of service.
The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | RedHat | xorg-x11-server-Xwayland-0:24.1.5-4.el10_0 | * |
| Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION | RedHat | tigervnc-0:1.1.0-25.el6_10.1 | * |
| Red Hat Enterprise Linux 7.7 Advanced Update Support | RedHat | tigervnc-0:1.8.0-17.el7_7.1 | * |
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | RedHat | xorg-x11-server-0:1.20.4-32.el7_9 | * |
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | RedHat | tigervnc-0:1.8.0-36.el7_9.2 | * |
| Red Hat Enterprise Linux 8 | RedHat | xorg-x11-server-0:1.20.11-26.el8_10 | * |
| Red Hat Enterprise Linux 8 | RedHat | xorg-x11-server-Xwayland-0:21.1.3-18.el8_10 | * |
| Red Hat Enterprise Linux 8 | RedHat | tigervnc-0:1.15.0-7.el8_10 | * |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | tigervnc-0:1.9.0-15.el8_2.14 | * |
| Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | xorg-x11-server-0:1.20.6-4.el8_2 | * |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | xorg-x11-server-0:1.20.10-2.el8_4 | * |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | tigervnc-0:1.11.0-8.el8_4.13 | * |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | RedHat | xorg-x11-server-0:1.20.10-2.el8_4 | * |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | RedHat | tigervnc-0:1.11.0-8.el8_4.13 | * |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | RedHat | tigervnc-0:1.12.0-6.el8_6.14 | * |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | RedHat | xorg-x11-server-Xwayland-0:21.1.3-2.el8_6.4 | * |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | RedHat | xorg-x11-server-0:1.20.11-5.el8_6.3 | * |
| Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | RedHat | tigervnc-0:1.12.0-6.el8_6.14 | * |
| Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | RedHat | xorg-x11-server-Xwayland-0:21.1.3-2.el8_6.4 | * |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | RedHat | tigervnc-0:1.12.0-6.el8_6.14 | * |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | RedHat | xorg-x11-server-Xwayland-0:21.1.3-2.el8_6.4 | * |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service | RedHat | xorg-x11-server-0:1.20.11-5.el8_6.3 | * |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | RedHat | tigervnc-0:1.12.0-6.el8_6.14 | * |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | RedHat | xorg-x11-server-Xwayland-0:21.1.3-2.el8_6.4 | * |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | RedHat | xorg-x11-server-0:1.20.11-5.el8_6.3 | * |
| Red Hat Enterprise Linux 8.8 Extended Update Support Long-Life Add-On | RedHat | xorg-x11-server-0:1.20.11-16.el8_8 | * |
| Red Hat Enterprise Linux 8.8 Extended Update Support Long-Life Add-On | RedHat | xorg-x11-server-Xwayland-0:21.1.3-11.el8_8 | * |
| Red Hat Enterprise Linux 8.8 Telecommunications Update Service | RedHat | xorg-x11-server-0:1.20.11-16.el8_8 | * |
| Red Hat Enterprise Linux 8.8 Telecommunications Update Service | RedHat | tigervnc-0:1.12.0-15.el8_8.14 | * |
| Red Hat Enterprise Linux 8.8 Telecommunications Update Service | RedHat | xorg-x11-server-Xwayland-0:21.1.3-11.el8_8 | * |
| Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | RedHat | xorg-x11-server-0:1.20.11-16.el8_8 | * |
| Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | RedHat | tigervnc-0:1.12.0-15.el8_8.14 | * |
| Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | RedHat | xorg-x11-server-Xwayland-0:21.1.3-11.el8_8 | * |
| Red Hat Enterprise Linux 9 | RedHat | xorg-x11-server-0:1.20.11-31.el9_6 | * |
| Red Hat Enterprise Linux 9 | RedHat | xorg-x11-server-Xwayland-0:23.2.7-4.el9_6 | * |
| Red Hat Enterprise Linux 9 | RedHat | tigervnc-0:1.14.1-8.el9_6 | * |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | RedHat | xorg-x11-server-Xwayland-0:21.1.3-3.el9_0 | * |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | RedHat | xorg-x11-server-0:1.20.11-11.el9_0 | * |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | RedHat | tigervnc-0:1.11.0-22.el9_0.15 | * |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | RedHat | xorg-x11-server-Xwayland-0:21.1.3-8.el9_2 | * |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | RedHat | xorg-x11-server-0:1.20.11-18.el9_2 | * |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | RedHat | tigervnc-0:1.12.0-14.el9_2.12 | * |
| Red Hat Enterprise Linux 9.4 Extended Update Support | RedHat | xorg-x11-server-Xwayland-0:22.1.9-6.el9_4 | * |
| Red Hat Enterprise Linux 9.4 Extended Update Support | RedHat | xorg-x11-server-0:1.20.11-26.el9_4 | * |
| Red Hat Enterprise Linux 9.4 Extended Update Support | RedHat | tigervnc-0:1.13.1-8.el9_4.7 | * |
| Xorg-server | Ubuntu | devel | * |
| Xorg-server | Ubuntu | esm-infra/bionic | * |
| Xorg-server | Ubuntu | esm-infra/focal | * |
| Xorg-server | Ubuntu | esm-infra/xenial | * |
| Xorg-server | Ubuntu | jammy | * |
| Xorg-server | Ubuntu | noble | * |
| Xorg-server | Ubuntu | oracular | * |
| Xorg-server | Ubuntu | plucky | * |
| Xorg-server | Ubuntu | upstream | * |
| Xorg-server-hwe-16.04 | Ubuntu | esm-infra/xenial | * |
| Xorg-server-hwe-18.04 | Ubuntu | esm-infra/bionic | * |
| Xwayland | Ubuntu | devel | * |
| Xwayland | Ubuntu | jammy | * |
| Xwayland | Ubuntu | noble | * |
| Xwayland | Ubuntu | oracular | * |
| Xwayland | Ubuntu | plucky | * |
| Xwayland | Ubuntu | upstream | * |
Locking is a type of synchronization behavior that ensures that multiple independently-operating processes or threads do not interfere with each other when accessing the same resource. All processes/threads are expected to follow the same steps for locking. If these steps are not followed precisely - or if no locking is done at all - then another process/thread could modify the shared resource in a way that is not visible or predictable to the original process. This can lead to data or memory corruption, denial of service, etc.