CVE-2012-4423 · cross-distro fix matrix

CVE-2012-4423: The virNetServerProgramDispatchCall function in libvirt before 0.10.2 allows remote attackers to cause a denial of service (NULL pointer dereference and segmentation fault) via an RPC call with (1) an event as the RPC number or (2) an RPC number whose value is in a "gap" in the RPC dispatch table.

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

Fix per ecosystem

Each block below is a distro release where CVE-2012-4423 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

libvirt→ fixed in0.9.12-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libvirt
```

Debian bookworm

Source: Debian Security Tracker

libvirt→ fixed in0.9.12-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libvirt
```

Debian trixie

Source: Debian Security Tracker

libvirt→ fixed in0.9.12-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y libvirt
```

Are YOU affected by CVE-2012-4423?

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.

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