CVE-2021-41089 · cross-distro fix matrix

CVE-2021-41089: Moby is an open-source project created by Docker to enable software containerization. A bug was found in Moby (Docker Engine) where attempting to copy files using `docker cp` into a specially-crafted container can result in Unix file permission changes for existing files in the host’s filesystem, wi

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

Fix per ecosystem

Each block below is a distro release where CVE-2021-41089 has a known fix. Run the listed command on that distro to remediate.

Debian bullseye

Source: Debian Security Tracker

docker.io→ fixed in20.10.5+dfsg1-1+deb11u1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y docker.io
```

Debian bookworm

Source: Debian Security Tracker

docker.io→ fixed in20.10.10+dfsg1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y docker.io
```

Debian trixie

Source: Debian Security Tracker

docker.io→ fixed in20.10.10+dfsg1-1urgency: not yet assigned
```
sudo apt-get install --only-upgrade -y docker.io
```

Alpine v3.20

Source: Alpine secdb

docker→ fixed in20.10.9-r0
```
apk update && apk add --upgrade docker
```

Alpine v3.21

Source: Alpine secdb

docker→ fixed in20.10.9-r0
```
apk update && apk add --upgrade docker
```

Alpine edge

Source: Alpine secdb

docker→ fixed in20.10.9-r0
```
apk update && apk add --upgrade docker
```

Alpine v3.18

Source: Alpine secdb

docker→ fixed in20.10.9-r0
```
apk update && apk add --upgrade docker
```

Alpine v3.19

Source: Alpine secdb

docker→ fixed in20.10.9-r0
```
apk update && apk add --upgrade docker
```

Are YOU affected by CVE-2021-41089?

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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