Skip to content

Conversation

@renovate
Copy link
Contributor

@renovate renovate bot commented Jul 29, 2025

This PR contains the following updates:

Package Change Age Confidence
github.com/docker/docker v28.3.2+incompatible -> v28.3.3+incompatible age confidence

GitHub Vulnerability Alerts

CVE-2025-54388

Moby is an open source container framework developed by Docker Inc. that is distributed as Docker Engine, Mirantis Container Runtime, and various other downstream projects/products. The Moby daemon component (dockerd), which is developed as moby/moby is commonly referred to as Docker, or Docker Engine.

Firewalld is a daemon used by some Linux distributions to provide a dynamically managed firewall. When Firewalld is running, Docker uses its iptables backend to create rules, including rules to isolate containers in one bridge network from containers in other bridge networks.

Impact

The iptables rules created by Docker are removed when firewalld is reloaded using, for example "firewall-cmd --reload", "killall -HUP firewalld", or "systemctl reload firewalld".

When that happens, Docker must re-create the rules. However, in affected versions of Docker, the iptables rules that prevent packets arriving on a host interface from reaching container addresses are not re-created.

Once these rules have been removed, a remote host configured with a route to a Docker bridge network can access published ports, even when those ports were only published to a loopback address. Unpublished ports remain inaccessible.

For example, following a firewalld reload on a Docker host with address 192.168.0.10 and a bridge network with subnet 172.17.0.0/16, running the following command on another host in the local network will give it access to published ports on container addresses in that network: ip route add 172.17.0.0/16 via 192.168.0.10.

Containers running in networks created with --internal or equivalent have no access to other networks. Containers that are only connected to these networks remain isolated after a firewalld reload.

Where Docker Engine is not running in the host's network namespace, it is unaffected. Including, for example, Rootless Mode, and Docker Desktop.

Patches

Moby releases older than 28.2.0 are not affected. A fix is available in moby release 28.3.3.

Workarounds

After reloading firewalld, either:

  • Restart the docker daemon,
  • Re-create bridge networks, or
  • Use rootless mode.

References

https://firewalld.org/
https://firewalld.org/documentation/howto/reload-firewalld.html


Release Notes

docker/docker (github.com/docker/docker)

v28.3.3+incompatible

Compare Source


Configuration

📅 Schedule: Branch creation - "" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.


  • If you want to rebase/retry this PR, check this box

This PR was generated by Mend Renovate. View the repository job log.

@renovate renovate bot added the dependencies Indicates a change to dependencies label Jul 29, 2025
@renovate renovate bot requested a review from a team as a code owner July 29, 2025 23:38
@renovate renovate bot added the dependencies Indicates a change to dependencies label Jul 29, 2025
@renovate renovate bot force-pushed the renovate/go-cf-workers-proxy-9e9.pages.dev-docker-docker-vulnerability branch from 06cf04a to 321e9c4 Compare July 30, 2025 15:29
@wass3rw3rk wass3rw3rk merged commit dd1f552 into main Jul 30, 2025
12 of 14 checks passed
@wass3rw3rk wass3rw3rk deleted the renovate/go-cf-workers-proxy-9e9.pages.dev-docker-docker-vulnerability branch July 30, 2025 15:38
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Labels

dependencies Indicates a change to dependencies

Projects

None yet

Development

Successfully merging this pull request may close these issues.

3 participants