CVE-2019-14870 · cross-distro fix matrix

CVE-2019-14870: All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the S4U (MS-SFU) Kerberos delegation model includes a feature allowing for a subset of clients to be opted out of constrained delegation in any way, either S4U2Self or regular Kerberos authent

Affects 8 Linux releases across 16 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2019-14870 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

heimdal→ fixed in7.7.0+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y heimdal
```
samba→ fixed in2:4.11.3+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y samba
```

Debian bookworm

Source: Debian Security Tracker

heimdal→ fixed in7.7.0+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y heimdal
```
samba→ fixed in2:4.11.3+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y samba
```

Debian trixie

Source: Debian Security Tracker

heimdal→ fixed in7.7.0+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y heimdal
```
samba→ fixed in2:4.11.3+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y samba
```

Alpine v3.20

Source: Alpine secdb

heimdal→ fixed in7.7.1-r0
```
apk update && apk add --upgrade heimdal
```
samba→ fixed in4.11.3-r0
```
apk update && apk add --upgrade samba
```

Alpine v3.21

Source: Alpine secdb

heimdal→ fixed in7.7.1-r0
```
apk update && apk add --upgrade heimdal
```
samba→ fixed in4.11.3-r0
```
apk update && apk add --upgrade samba
```

Alpine edge

Source: Alpine secdb

heimdal→ fixed in7.7.1-r0
```
apk update && apk add --upgrade heimdal
```
samba→ fixed in4.11.3-r0
```
apk update && apk add --upgrade samba
```

Alpine v3.18

Source: Alpine secdb

heimdal→ fixed in7.7.1-r0
```
apk update && apk add --upgrade heimdal
```
samba→ fixed in4.11.3-r0
```
apk update && apk add --upgrade samba
```

Alpine v3.19

Source: Alpine secdb

heimdal→ fixed in7.7.1-r0
```
apk update && apk add --upgrade heimdal
```
samba→ fixed in4.11.3-r0
```
apk update && apk add --upgrade samba
```

Are YOU affected by CVE-2019-14870?

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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