Astra Linux – Vulnerability in xorg-server

A flaw was discovered in the X.Org Server Overlay Window. A use-after-free could lead to local privilege escalation. If a client explicitly destroys the compositor overlay window also known as COW, the Xserver will retain a dangling pointer to that window in the CompScreen structure, which will...

OESA-2023-1239 xorg-x11-server security update

X.Org X11 X server. Security Fixes: A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation. If a client explicitly destroys the compositor overlay window aka COW, the Xserver would leave a dangling pointer to that window in the CompScreen structur...

CVE-2023-1393

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CVE-2023-1393

A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation. If a client explicitly destroys the compositor overlay window aka COW, the Xserver would leave a dangling pointer to that window in the CompScreen structure, which will trigger a use-after-fr...

xorg-server -- Overlay Window Use-After-Free

The X.Org project reports: ZDI-CAN-19866/CVE-2023-1393: X.Org Server Overlay Window Use-After-Free Local Privilege Escalation Vulnerability If a client explicitly destroys the compositor overlay window aka COW, the Xserver would leave a dangling pointer to that window in the CompScreen structure,...