CVE-2022-42898 · cross-distro fix matrix

CVE-2022-42898: PAC parsing in MIT Kerberos 5 (aka krb5) before 1.19.4 and 1.20.x before 1.20.1 has integer overflows that may lead to remote code execution (in KDC, kadmind, or a GSS or Kerberos application server) on 32-bit platforms (which have a resultant heap-based buffer overflow), and cause a denial of servi

Affects 8 Linux releases across 23 (distro × package) combinations.

Fix per ecosystem

Each block below is a distro release where CVE-2022-42898 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-2+deb11u2urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y heimdal
```
krb5→ fixed in1.18.3-6+deb11u3urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y krb5
```

Debian bookworm

Source: Debian Security Tracker

heimdal→ fixed in7.8.git20221115.a6cf945+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y heimdal
```
krb5→ fixed in1.20.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y krb5
```
samba→ fixed in2:4.17.3+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y samba
```

Debian trixie

Source: Debian Security Tracker

heimdal→ fixed in7.8.git20221115.a6cf945+dfsg-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y heimdal
```
krb5→ fixed in1.20.1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y krb5
```
samba→ fixed in2:4.17.3+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
```
krb5→ fixed in1.20.1-r0
```
apk update && apk add --upgrade krb5
```
samba→ fixed in4.16.7-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
```
krb5→ fixed in1.20.1-r0
```
apk update && apk add --upgrade krb5
```
samba→ fixed in4.16.7-r0
```
apk update && apk add --upgrade samba
```

Alpine edge

Source: Alpine secdb

heimdal→ fixed in7.7.1-r0
```
apk update && apk add --upgrade heimdal
```
krb5→ fixed in1.20.1-r0
```
apk update && apk add --upgrade krb5
```
samba→ fixed in4.16.7-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
```
krb5→ fixed in1.20.1-r0
```
apk update && apk add --upgrade krb5
```
samba→ fixed in4.16.7-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
```
krb5→ fixed in1.20.1-r0
```
apk update && apk add --upgrade krb5
```
samba→ fixed in4.16.7-r0
```
apk update && apk add --upgrade samba
```

Are YOU affected by CVE-2022-42898?

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

CVE-2022-42898dropped silently in your distro's update channel. Every new CVE is the same story. StackPatch runs the matcher hourly against all 5 sources and emails the exact remediation when something new applies to one of your servers. $99 lifetime, 50 founder seats, 30-day refund.

See StackPatch ($99 lifetime)