CVE-2020-8608 · cross-distro fix matrix

CVE-2020-8608: In libslirp 4.1.0, as used in QEMU 4.2.0, tcp_subr.c misuses snprintf return values, leading to a buffer overflow in later code.

Affects 3 Linux releases across 12 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2020-8608 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

libslirp→ fixed in4.2.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libslirp
```
qemu→ fixed in1:4.1-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y qemu
```
slirp→ fixed in1:1.0.17-11urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y slirp
```
slirp4netns→ fixed in1.0.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y slirp4netns
```

Debian bookworm

Source: Debian Security Tracker

libslirp→ fixed in4.2.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libslirp
```
qemu→ fixed in1:4.1-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y qemu
```
slirp→ fixed in1:1.0.17-11urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y slirp
```
slirp4netns→ fixed in1.0.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y slirp4netns
```

Debian trixie

Source: Debian Security Tracker

libslirp→ fixed in4.2.0-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libslirp
```
qemu→ fixed in1:4.1-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y qemu
```
slirp→ fixed in1:1.0.17-11urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y slirp
```
slirp4netns→ fixed in1.0.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y slirp4netns
```

Are YOU affected by CVE-2020-8608?

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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