RHSA-2025:12751HighCVSS 9.8

Red Hat Security Advisory: tigervnc security update

Published
August 4, 2025
Last Modified
August 6, 2026

🔗 CVE IDs covered (18)

CVE-2022-46342 →CVE-2023-0494 →CVE-2024-21885 →CVE-2022-4283 →CVE-2022-46340 →CVE-2023-6478 →CVE-2024-9632 →CVE-2024-31080 →CVE-2024-31081 →CVE-2022-46344 →CVE-2023-1393 →CVE-2023-6816 →CVE-2024-31083 →CVE-2022-46343 →CVE-2023-5367 →CVE-2024-0229 →CVE-2024-21886 →CVE-2022-46341 →

📋 Description

CVE-2022-4283 — xorg-x11-server: XkbGetKbdByName use-after-free CVE-2022-46340 — xorg-x11-server: XTestSwapFakeInput stack overflow CVE-2022-46341 — xorg-x11-server: XIPassiveUngrab out-of-bounds access CVE-2022-46342 — xorg-x11-server: XvdiSelectVideoNotify use-after-free CVE-2022-46343 — xorg-x11-server: ScreenSaverSetAttributes use-after-free CVE-2022-46344 — xorg-x11-server: XIChangeProperty out-of-bounds access CVE-2023-0494 — xorg-x11-server: DeepCopyPointerClasses use-after-free leads to privilege elevation CVE-2023-1393 — xorg-x11-server: X.Org Server Overlay Window Use-After-Free Local Privilege Escalation Vulnerability CVE-2023-5367 — xorg-x11-server: Out-of-bounds write in XIChangeDeviceProperty/RRChangeOutputProperty CVE-2023-6478 — xorg-x11-server: out-of-bounds memory read in RRChangeOutputProperty and RRChangeProviderProperty CVE-2023-6816 — xorg-x11-server: Heap buffer overflow in DeviceFocusEvent and ProcXIQueryPointer CVE-2024-0229 — xorg-x11-server: reattaching to different master device may lead to out-of-bounds memory access CVE-2024-9632 — xorg-x11-server: tigervnc: heap-based buffer overflow privilege escalation vulnerability CVE-2024-21885 — xorg-x11-server: heap buffer overflow in XISendDeviceHierarchyEvent CVE-2024-21886 — xorg-x11-server: heap buffer overflow in DisableDevice CVE-2024-31080 — xorg-x11-server: Heap buffer overread/data leakage in ProcXIGetSelectedEvents CVE-2024-31081 — xorg-x11-server: Heap buffer overread/data leakage in ProcXIPassiveGrabDevice CVE-2024-31083 — xorg-x11-server: Use-after-free in ProcRenderAddGlyphs

🎯 Affected products17

  • Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • tigervnc-0:1.1.0-25.el6_10.13.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • tigervnc-0:1.1.0-25.el6_10.13.s390x as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • tigervnc-0:1.1.0-25.el6_10.13.src as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • tigervnc-0:1.1.0-25.el6_10.13.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • tigervnc-debuginfo-0:1.1.0-25.el6_10.13.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • tigervnc-debuginfo-0:1.1.0-25.el6_10.13.i686 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • tigervnc-debuginfo-0:1.1.0-25.el6_10.13.s390x as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • tigervnc-debuginfo-0:1.1.0-25.el6_10.13.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • tigervnc-debuginfo-0:1.1.0-25.el6_10.13.x86_64 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • tigervnc-server-0:1.1.0-25.el6_10.13.i686 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • tigervnc-server-0:1.1.0-25.el6_10.13.s390x as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • tigervnc-server-0:1.1.0-25.el6_10.13.x86_64 as a component of Red Hat Enterprise Linux Server -EXTENSION(v. 6 ELS-EXTENSION)
  • tigervnc-server-applet-0:1.1.0-25.el6_10.13.noarch as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • tigervnc-server-module-0:1.1.0-25.el6_10.13.i686 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)
  • tigervnc-server-module-0:1.1.0-25.el6_10.13.x86_64 as a component of Red Hat Enterprise Linux Server Optional -EXTENSION (v. 6 ELS -EXTENSION)

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

🔗 References (21)