CVE-2019-11091 · cross-distro fix matrix

CVE-2019-11091: Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: ht

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

Fix per ecosystem

Each block below is a distro release where CVE-2019-11091 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

intel-microcode→ fixed in3.20190514.1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y intel-microcode
```
linux→ fixed in4.19.37-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y linux
```
xen→ fixed in4.11.1+92-g6c33308a8d-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y xen
```

Debian bookworm

Source: Debian Security Tracker

intel-microcode→ fixed in3.20190514.1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y intel-microcode
```
linux→ fixed in4.19.37-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y linux
```
xen→ fixed in4.11.1+92-g6c33308a8d-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y xen
```

Debian trixie

Source: Debian Security Tracker

intel-microcode→ fixed in3.20190514.1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y intel-microcode
```
linux→ fixed in4.19.37-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y linux
```
xen→ fixed in4.11.1+92-g6c33308a8d-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y xen
```

Are YOU affected by CVE-2019-11091?

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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