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2023 Mar 29
0
X.Org Security Advisory: CVE-2023-1393: X.Org Server Overlay Window Use-After-Free
...erver would leave a dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later. Patches ------- Patch for this issue have been committed to the xorg server git repository. xorg-server 21.1.8 will be released shortly and will include this patch. - commit 26ef545b3 - composite: Fix use-after-free of the COW (https://gitlab.freedesktop.org/xorg/xserver/-/commit/26ef545b3) ZDI-CAN-19866/CVE-2023-1393 If a client explicitly destroys the compositor overlay window (aka COW), we would leave a dangling pointer to that window in the CompScreen structure, which w...