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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Alpine | 3.17-community | noarch | xorg-server | =Â 21.1.8-r0 | UNKNOWN |
Alpine | 3.18-community | noarch | xorg-server | =Â 21.1.8-r0 | UNKNOWN |