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Fedora 43: Advisory 2025-264853458b for Moderate Unbounded Allocation Risk

fedora
Calendar Grey November 26, 2025
Dist Fedora Esm H88
Update for docker-buildkit resolves serious issues in Fedora 43, enhancing security against unbounded allocation risks.
Update to release v0.26.1 Update to release v0.26.0 Resolves: rhbz#2412681, rhbz#2412761 Upstream new features and fixes dependency override for moby/policy-helper needed for licen...

Summary

Concurrent, cache-efficient, and Dockerfile-agnostic builder toolkit.

Update Information:

Update to release v0.26.1 Update to release v0.26.0 Resolves: rhbz#2412681, rhbz#2412761 Upstream new features and fixes dependency override for moby/policy-helper needed for license (default version does not a a license file)

Topics%20covered

Topics Covered

security advisory moderate fedora buffer overflow docker-buildkit unbounded allocation

Change Log

* Mon Nov 17 2025 Bradley G Smith - 0.26.1-1 - Update to release v0.26.1 - Upstream fixes * Thu Nov 13 2025 Bradley G Smith - 0.26.0-1 - Update to release v0.26.0 - Resolves: rhbz#2412681, rhbz#2412761 - Upstream new features and fixes - dependency override for moby/policy-helper needed for license (default version does not a a license file)

References


[ 1 ] Bug #2412681 - CVE-2025-58183 docker-buildkit: Unbounded allocation when parsing GNU sparse map [fedora-43] https://bugzilla.redhat.com/show_bug.cgi?id=2412681 [ 2 ] Bug #2412761 - CVE-2025-58183 docker-buildkit: Unbounded allocation when parsing GNU sparse map [fedora-42] https://bugzilla.redhat.com/show_bug.cgi?id=2412761

Update Instructions

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-264853458b' at the command line. For more information, refer to the dnf documentation available at http://dnf.readthedocs.io/en/latest/command_ref.html#upgrade-command-label

Severity
important
Lowest
Low
Medium
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Critical

Name: docker-buildkit
Product: Fedora 43
Version: 0.26.1
Release: 1.fc43
URL: https://github.com/moby/buildkit
Summary: Concurrent, cache-efficient, and Dockerfile-agnostic builder toolkit

Topics%20covered

Topics Covered

security advisory moderate fedora buffer overflow docker-buildkit unbounded allocation

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