CVE-2018-12207 · cross-distro fix matrix

CVE-2018-12207: Improper invalidation for page table updates by a virtual guest operating system for multiple Intel(R) Processors may allow an authenticated user to potentially enable denial of service of the host system via local access.

Affects 3 Linux releases across 6 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2018-12207 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

linux→ fixed in5.3.9-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y linux
```
xen→ fixed in4.11.3+24-g14b62ab3e5-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y xen
```

Debian bookworm

Source: Debian Security Tracker

linux→ fixed in5.3.9-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y linux
```
xen→ fixed in4.11.3+24-g14b62ab3e5-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y xen
```

Debian trixie

Source: Debian Security Tracker

linux→ fixed in5.3.9-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y linux
```
xen→ fixed in4.11.3+24-g14b62ab3e5-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y xen
```

Are YOU affected by CVE-2018-12207?

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

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Continuous monitoring beats manual checking

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