CVE-2003-0688 · cross-distro fix matrix

CVE-2003-0688: The DNS map code in Sendmail 8.12.8 and earlier, when using the "enhdnsbl" feature, does not properly initialize certain data structures, which allows remote attackers to cause a denial of service (process crash) via an invalid DNS response that causes Sendmail to free incorrect data.

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

Fix per ecosystem

Each block below is a distro release where CVE-2003-0688 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

sendmail→ fixed in8.12.9urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y sendmail
```

Debian bookworm

Source: Debian Security Tracker

sendmail→ fixed in8.12.9urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y sendmail
```

Debian trixie

Source: Debian Security Tracker

sendmail→ fixed in8.12.9urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y sendmail
```

Are YOU affected by CVE-2003-0688?

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