CVE-2018-6553 · cross-distro fix matrix

CVE-2018-6553: The CUPS AppArmor profile incorrectly confined the dnssd backend due to use of hard links. A local attacker could possibly use this issue to escape confinement. This flaw affects versions prior to 2.2.7-1ubuntu2.1 in Ubuntu 18.04 LTS, prior to 2.2.4-7ubuntu3.1 in Ubuntu 17.10, prior to 2.1.3-4ubuntu

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

Fix per ecosystem

Each block below is a distro release where CVE-2018-6553 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

cups→ fixed in2.2.8-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y cups
```

Debian bookworm

Source: Debian Security Tracker

cups→ fixed in2.2.8-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y cups
```

Debian trixie

Source: Debian Security Tracker

cups→ fixed in2.2.8-5urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y cups
```

Are YOU affected by CVE-2018-6553?

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-2018-6553dropped 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)