CVE-2022-21123 · cross-distro fix matrix

CVE-2022-21123: Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.

Affects 3 Linux releases across 9 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2022-21123 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

intel-microcode→ fixed in3.20220510.1~deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y intel-microcode
```
linux→ fixed in5.10.127-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y linux
```
xen→ fixed in4.14.5+24-g87d90d511c-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y xen
```

Debian bookworm

Source: Debian Security Tracker

intel-microcode→ fixed in3.20220510.1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y intel-microcode
```
linux→ fixed in5.18.5-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y linux
```
xen→ fixed in4.16.2-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y xen
```

Debian trixie

Source: Debian Security Tracker

intel-microcode→ fixed in3.20220510.1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y intel-microcode
```
linux→ fixed in5.18.5-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y linux
```
xen→ fixed in4.16.2-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y xen
```

Are YOU affected by CVE-2022-21123?

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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