SUSE-SU-2026:20112-1: critical: Security update for docker

Fri Jan 23 08:30:48 UTC 2026

# Security update for docker

Announcement ID: SUSE-SU-2026:20112-1  
Release Date: 2026-01-17T13:19:29Z  
Rating: critical  
References:

  * bsc#1247367
  * bsc#1247594
  * bsc#1248373
  * bsc#1250508
  * 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 6.2

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

## Description:

This update for docker fixes the following issues:

Changes in docker:

  * Update to Docker 28.5.1-ce. See upstream changelog online at
    <https://docs.docker.com/engine/release-notes/28/#2851>

  * Update to Docker 28.5.0-ce. See upstream changelog online at
    <https://docs.docker.com/engine/release-notes/28/#2850>

  * Update to docker-buildx v0.29.0. Upstream changelog:
    <https://github.com/docker/buildx/releases/tag/v0.29.0>

  * Remove git-core recommends on SLE. Most SLE systems have
    installRecommends=yes by default and thus end up installing git with Docker.
    bsc#1250508

This feature is mostly intended for developers ("docker build git://") so most
users already have the dependency installed, and the error when git is missing
is fairly straightforward (so they can easily figure out what they need to
install).

  * Update to docker-buildx v0.28.0. Upstream changelog:
    <https://github.com/docker/buildx/releases/tag/v0.28.0>

  * Update to Docker 28.4.0-ce. See upstream changelog online at
    <https://docs.docker.com/engine/release-notes/28/#2840>

  * Fixes a nil pointer panic in "docker push". bsc#1248373

  * 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. PED-12534 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> CVE-2025-54388
    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 6.2  
    zypper in -t patch SUSE-SL-Micro-6.2-151=1

## Package List:

  * SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
    * docker-buildx-0.29.0-160000.4.1
    * docker-debuginfo-28.5.1_ce-160000.4.1
    * docker-28.5.1_ce-160000.4.1
    * docker-buildx-debuginfo-0.29.0-160000.4.1

## 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://bugzilla.suse.com/show_bug.cgi?id=1248373
  * https://bugzilla.suse.com/show_bug.cgi?id=1250508
  * https://jira.suse.com/browse/PED-12534
  * https://jira.suse.com/browse/PED-8905

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