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2025 Feb 25
0
X.Org Security Advisory: multiple security issues X.Org X server and Xwayland
...rtual modifiers to that buffer.
The code however fails to check the bounds of the buffer correctly and
would copy the data regardless of the size, which may lead to a buffer
overflow.
xorg-server-21.1.16 and xwayland-24.1.6 have been patched to fix this issue.
3) CVE-2025-26596: Heap overflow in XkbWriteKeySyms()
Introduced in: initial version of xc/programs/Xserver/xkb/xkb.c in X11R6
Fixed in: xorg-server-21.1.16 and xwayland-24.1.6
Fix: https://gitlab.freedesktop.org/xorg/xserver/-/commit/80d69f01
Found by: Jan-Niklas Sohn working with Trend Micro Zero Day Initiative
The computation of the length in X...