vulnerability
Red Hat: CVE-2025-26595: Xorg: xwayland: Buffer overflow in XkbVModMaskText() (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | Feb 25, 2025 | Mar 11, 2025 | Jan 28, 2026 |
Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Feb 25, 2025
Added
Mar 11, 2025
Modified
Jan 28, 2026
Description
A buffer overflow flaw was found in X.Org and Xwayland. The code in XkbVModMaskText() allocates a fixed-sized buffer on the stack and copies the names of the virtual modifiers to that buffer. The code fails to check the bounds of the buffer and would copy the data regardless of the size.
Solutions
no-fix-redhat-rpm-packageredhat-upgrade-tigervncredhat-upgrade-tigervnc-debuginforedhat-upgrade-tigervnc-debugsourceredhat-upgrade-tigervnc-iconsredhat-upgrade-tigervnc-licenseredhat-upgrade-tigervnc-selinuxredhat-upgrade-tigervnc-serverredhat-upgrade-tigervnc-server-debuginforedhat-upgrade-tigervnc-server-minimalredhat-upgrade-tigervnc-server-minimal-debuginforedhat-upgrade-tigervnc-server-moduleredhat-upgrade-tigervnc-server-module-debuginforedhat-upgrade-xorg-x11-server-commonredhat-upgrade-xorg-x11-server-debuginforedhat-upgrade-xorg-x11-server-debugsourceredhat-upgrade-xorg-x11-server-develredhat-upgrade-xorg-x11-server-sourceredhat-upgrade-xorg-x11-server-xdmxredhat-upgrade-xorg-x11-server-xdmx-debuginforedhat-upgrade-xorg-x11-server-xephyrredhat-upgrade-xorg-x11-server-xephyr-debuginforedhat-upgrade-xorg-x11-server-xnestredhat-upgrade-xorg-x11-server-xnest-debuginforedhat-upgrade-xorg-x11-server-xorgredhat-upgrade-xorg-x11-server-xorg-debuginforedhat-upgrade-xorg-x11-server-xvfbredhat-upgrade-xorg-x11-server-xvfb-debuginforedhat-upgrade-xorg-x11-server-xwaylandredhat-upgrade-xorg-x11-server-xwayland-debuginforedhat-upgrade-xorg-x11-server-xwayland-debugsourceredhat-upgrade-xorg-x11-server-xwayland-devel
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