CVE-2019-18849 · cross-distro fix matrix

CVE-2019-18849: In tnef before 1.4.18, an attacker may be able to write to the victim's .ssh/authorized_keys file via an e-mail message with a crafted winmail.dat application/ms-tnef attachment, because of a heap-based buffer over-read involving strdup.

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

Fix per ecosystem

Each block below is a distro release where CVE-2019-18849 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

tnef→ fixed in1.4.18-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y tnef
```

Debian bookworm

Source: Debian Security Tracker

tnef→ fixed in1.4.18-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y tnef
```

Debian trixie

Source: Debian Security Tracker

tnef→ fixed in1.4.18-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y tnef
```

Are YOU affected by CVE-2019-18849?

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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