VULNERABILITY

Red Hat: CVE-2025-26599: xorg: xwayland: Use of uninitialized pointer in compRedirectWindow() (Multiple Advisories)

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Red Hat: CVE-2025-26599: xorg: xwayland: Use of uninitialized pointer in compRedirectWindow() (Multiple Advisories)

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
02/25/2025
Created
03/12/2025
Added
03/11/2025
Modified
03/18/2025

Description

An access to an uninitialized pointer flaw was found in X.Org and Xwayland. The function compCheckRedirect() may fail if it cannot allocate the backing pixmap. In that case, compRedirectWindow() will return a BadAlloc error without validating the window tree marked just before, which leaves the validated data partly initialized and the use of an uninitialized pointer later.

Solution(s)

  • redhat-upgrade-tigervnc
  • redhat-upgrade-tigervnc-debuginfo
  • redhat-upgrade-tigervnc-debugsource
  • redhat-upgrade-tigervnc-icons
  • redhat-upgrade-tigervnc-license
  • redhat-upgrade-tigervnc-selinux
  • redhat-upgrade-tigervnc-server
  • redhat-upgrade-tigervnc-server-debuginfo
  • redhat-upgrade-tigervnc-server-minimal
  • redhat-upgrade-tigervnc-server-minimal-debuginfo
  • redhat-upgrade-tigervnc-server-module
  • redhat-upgrade-tigervnc-server-module-debuginfo

References

  • CVE-2025-26599
  • RHSA-2025:2500
  • RHSA-2025:2502
  • RHSA-2025:2862
  • RHSA-2025:2874
  • RHSA-2025:2875

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