CVE-2018-16852 · cross-distro fix matrix

CVE-2018-16852: Samba from version 4.9.0 and before version 4.9.3 is vulnerable to a NULL pointer de-reference. During the processing of an DNS zone in the DNS management DCE/RPC server, the internal DNS server or the Samba DLZ plugin for BIND9, if the DSPROPERTY_ZONE_MASTER_SERVERS property or DSPROPERTY_ZONE_SCAV

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

Fix per ecosystem

Each block below is a distro release where CVE-2018-16852 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

samba→ fixed in2:4.9.2+dfsg-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y samba
```

Debian bookworm

Source: Debian Security Tracker

samba→ fixed in2:4.9.2+dfsg-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y samba
```

Debian trixie

Source: Debian Security Tracker

samba→ fixed in2:4.9.2+dfsg-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y samba
```

Are YOU affected by CVE-2018-16852?

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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