Issued at: 2025-05-07
Updated at: 2025-05-07
Synopsis
Important: tigervnc security update
Description
Virtual Network Computing (VNC) is a remote display system which allows users to view a computing desktop environment not only on the machine where it is running, but from anywhere on the Internet and from a wide variety of machine architectures. TigerVNC is a suite of VNC servers and clients.
Security Fix(es):
* X.Org: Xwayland: Use-after-free of the root cursor (CVE-2025-26594)
* xorg: xwayland: Use-after-free in SyncInitTrigger() (CVE-2025-26601)
* xorg: xwayland: Use-after-free in PlayReleasedEvents() (CVE-2025-26600)
* xorg: xwayland: Use of uninitialized pointer in compRedirectWindow() (CVE-2025-26599)
* xorg: xwayland: Out-of-bounds write in CreatePointerBarrierClient() (CVE-2025-26598)
* xorg: xwayland: Buffer overflow in XkbChangeTypesOfKey() (CVE-2025-26597)
* xorg: xwayland: Heap overflow in XkbWriteKeySyms() (CVE-2025-26596)
* Xorg: xwayland: Buffer overflow in XkbVModMaskText() (CVE-2025-26595)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.