vulnerability

FreeBSD: VID-96d84238-b500-490b-b6aa-2b77090a0410 (CVE-2023-1393): xorg-server -- Overlay Window Use-After-Free

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Mar 29, 2023
Added
Mar 31, 2023
Modified
Dec 10, 2025

Description

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, which will trigger a use-after-free later.

Solutions

freebsd-upgrade-package-xorg-serverfreebsd-upgrade-package-xephyrfreebsd-upgrade-package-xorg-vfbserverfreebsd-upgrade-package-xorg-nestserverfreebsd-upgrade-package-xwaylandfreebsd-upgrade-package-xwayland-devel
Title
NEW

Explore Exposure Command

Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.