CVE-2021-44730 · cross-distro fix matrix

CVE-2021-44730: snapd 2.54.2 did not properly validate the location of the snap-confine binary. A local attacker who can hardlink this binary to another location to cause snap-confine to execute other arbitrary binaries and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-44730 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

snapd→ fixed in2.49-1+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y snapd
```

Debian bookworm

Source: Debian Security Tracker

snapd→ fixed in2.54.3-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y snapd
```

Debian trixie

Source: Debian Security Tracker

snapd→ fixed in2.54.3-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y snapd
```

Are YOU affected by CVE-2021-44730?

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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