CVE-2003-0386 · cross-distro fix matrix

CVE-2003-0386: OpenSSH 3.6.1 and earlier, when restricting host access by numeric IP addresses and with VerifyReverseMapping disabled, allows remote attackers to bypass "from=" and "user@host" address restrictions by connecting to a host from a system whose reverse DNS hostname contains the numeric IP address.

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

Fix per ecosystem

Each block below is a distro release where CVE-2003-0386 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

openssh→ fixed in1:3.8p1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssh
```

Debian bookworm

Source: Debian Security Tracker

openssh→ fixed in1:3.8p1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssh
```

Debian trixie

Source: Debian Security Tracker

openssh→ fixed in1:3.8p1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y openssh
```

Are YOU affected by CVE-2003-0386?

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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