CVE-2023-1393 · cross-distro fix matrix

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-fre

Affects 3 Linux releases across 5 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2023-1393 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

xorg-server→ fixed in2:1.20.11-1+deb11u6urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y xorg-server
```

Debian bookworm

Source: Debian Security Tracker

xorg-server→ fixed in2:21.1.7-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y xorg-server
```
xwayland→ fixed in2:22.1.9-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y xwayland
```

Debian trixie

Source: Debian Security Tracker

xorg-server→ fixed in2:21.1.7-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y xorg-server
```
xwayland→ fixed in2:22.1.9-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y xwayland
```

Are YOU affected by CVE-2023-1393?

5-second check on your actual server. Reads /etc/os-release, uname -r, and the distro's package manager; matches against this same cross-source index live.

curl https://mindsparkstack.com/scan.sh | bash

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

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