CVE-2023-1393 (published 2023-03-30T00:00:00)
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-free later.
Affected products: Vendor: n/a
Product: xorg-server
Versions: xorg-server 21.1.8