Ubuntu: USN-5986-1 (CVE-2023-1393): X.Org X Server vulnerability
4
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
03/30/2023
05/05/2023
04/10/2023
10/23/2024
Description
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.
Solution(s)
- ubuntu-upgrade-xserver-xorg-core
- ubuntu-upgrade-xserver-xorg-core-hwe-18-04
- ubuntu-upgrade-xwayland
- ubuntu-upgrade-xwayland-hwe-18-04
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