CVE-2024-39929 · cross-distro fix matrix

CVE-2024-39929: Exim through 4.97.1 misparses a multiline RFC 2231 header filename, and thus remote attackers can bypass a $mime_filename extension-blocking protection mechanism, and potentially deliver executable attachments to the mailboxes of end users.

Affects 6 Linux releases across 6 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2024-39929 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

exim4→ fixed in4.94.2-7+deb11u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y exim4
```

Debian bookworm

Source: Debian Security Tracker

exim4→ fixed in4.96-15+deb12u5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y exim4
```

Debian trixie

Source: Debian Security Tracker

exim4→ fixed in4.98~RC3-2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y exim4
```

Alpine v3.20

Source: Alpine secdb

exim→ fixed in4.98-r0
```
apk update && apk add --upgrade exim
```

Alpine v3.21

Source: Alpine secdb

exim→ fixed in4.98-r0
```
apk update && apk add --upgrade exim
```

Alpine edge

Source: Alpine secdb

exim→ fixed in4.98-r0
```
apk update && apk add --upgrade exim
```

Are YOU affected by CVE-2024-39929?

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

Form-based quickscan View on NVD

Continuous monitoring beats manual checking

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