SUSE-SU-2025:20743-1: moderate: Security update for docker

[SLE-SECURITY-UPDATES]

# Security update for docker

Announcement ID: SUSE-SU-2025:20743-1  
Release Date: 2025-09-10T16:10:30Z  
Rating: moderate  
References:

  * bsc#1247367
  * bsc#1247594
  * jsc#PED-12534
  * jsc#PED-8905

  
Cross-References:

  * CVE-2025-54388

  
CVSS scores:

  * CVE-2025-54388 ( SUSE ):  5.1
    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
  * CVE-2025-54388 ( SUSE ):  5.2 CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
  * CVE-2025-54388 ( NVD ):  5.1
    CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2025-54388 ( NVD ):  4.6 CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

  
Affected Products:

  * SUSE Linux Micro 6.1

  
  
An update that solves one vulnerability, contains two features and has one fix
can now be installed.

## Description:

This update for docker fixes the following issues:

Update to docker-buildx v0.28.0.

See upstream changelog: <https://github.com/docker/buildx/releases/tag/v0.28.0>

Update to Docker 28.4.0-ce.

See upstream changelog: <https://docs.docker.com/engine/release-notes/28/#2840>

  * Update warnings and errors related to "docker buildx ..." so that they
    reference our openSUSE docker-buildx packages.

  * Enable building docker-buildx for SLE15 systems with SUSEConnect secret
    injection enabled.jsc#PED-12534jsc#PED-8905 bsc#1247594

As docker-buildx does not support our SUSEConnect secret injection (and some
users depend "docker build" working transparently), patch the docker CLI so that
"docker build" will no longer automatically call "docker buildx build",
effectively making DOCKER_BUILDKIT=0 the default configuration. Users can
manually use "docker buildx ..." commands or set DOCKER_BUILDKIT=1 in order to
opt-in to using docker-buildx.

Users can silence the "docker build" warning by setting DOCKER_BUILDKIT=0
explicitly.

In order to inject SCC credentials with docker-buildx, users should use

    
    
    RUN --mount=type=secret,id=SCCcredentials zypper -n ...
    

in their Dockerfiles, and

    
    
    docker buildx build --secret id=SCCcredentials,src=/etc/zypp/credentials.d/SCCcredentials,type=file .
    

when doing their builds.

Update to Docker 28.3.3-ce. See upstream changelog online at
<https://docs.docker.com/engine/release-notes/28/#2833>

Security issue fixed:

  * CVE-2025-54388: firewalld reload can make published container ports
    accessible from remote hosts (bsc#1247367)

Update to docker-buildx v0.26.1. Upstream changelog:
<https://github.com/docker/buildx/releases/tag/v0.26.1>

Update to docker-buildx v0.26.0. Upstream changelog:
<https://github.com/docker/buildx/releases/tag/v0.26.0>

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Micro 6.1  
    zypper in -t patch SUSE-SLE-Micro-6.1-257=1

## Package List:

  * SUSE Linux Micro 6.1 (aarch64 ppc64le s390x x86_64)
    * docker-buildx-0.28.0-slfo.1.1_6.1
    * docker-debuginfo-28.4.0_ce-slfo.1.1_6.1
    * docker-28.4.0_ce-slfo.1.1_6.1
    * docker-buildx-debuginfo-0.28.0-slfo.1.1_6.1

## References:

  * https://www.suse.com/security/cve/CVE-2025-54388.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1247367
  * https://bugzilla.suse.com/show_bug.cgi?id=1247594
  * https://jira.suse.com/browse/PED-12534
  * https://jira.suse.com/browse/PED-8905

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