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RedHat: RHSA-2022-7548 Low: Image Builder DoS Security Fix

red hat
Calendar Grey November 8, 2022
Dist Redhat Esm H88
Red Hat's newest Image Builder update enhances security by fixing a critical bug, ensuring minimal disruptions while improving operational integrity for users
An update for cockpit-composer, osbuild, osbuild-composer, and weldr-client is now available for Red Hat Enterprise Linux 8

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Summary

Image Builder is a service for building customized OS artifacts, such as VM images and OSTree commits, that uses osbuild under the hood.
Security Fix(es):
* golang: math/big: decoding big.Float and big.Rat types can panic if the encoded message is too short, potentially allowing a denial of service (CVE-2022-32189)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.7 Release Notes linked from the References section.

Topics%20covered

Topics Covered

security advisory Red Hat bug fix DoS security fix Image Builder osbuild

References

https://access.redhat.com/security/cve/CVE-2022-32189 https://access.redhat.com/security/updates/classification#low https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/8.7_release_notes/index

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: cockpit-composer-41-1.el8.src.rpm osbuild-65-1.el8.src.rpm osbuild-composer-62-1.el8.src.rpm weldr-client-35.5-4.el8.src.rpm
aarch64: osbuild-composer-62-1.el8.aarch64.rpm osbuild-composer-core-62-1.el8.aarch64.rpm osbuild-composer-core-debuginfo-62-1.el8.aarch64.rpm osbuild-composer-debuginfo-62-1.el8.aarch64.rpm osbuild-composer-debugsource-62-1.el8.aarch64.rpm osbuild-composer-dnf-json-62-1.el8.aarch64.rpm osbuild-composer-tests-debuginfo-62-1.el8.aarch64.rpm osbuild-composer-worker-62-1.el8.aarch64.rpm osbuild-composer-worker-debuginfo-62-1.el8.aarch64.rpm weldr-client-35.5-4.el8.aarch64.rpm weldr-client-debuginfo-35.5-4.el8.aarch64.rpm weldr-client-debugsource-35.5-4.el8.aarch64.rpm weldr-client-tests-debuginfo-35.5-4.el8.aarch64.rpm
noarch: cockpit-composer-41-1.el8.noarch.rpm osbuild-65-1.el8.noarch.rpm osbuild-luks2-65-1.el8.noarch.rpm osbuild-lvm2-65-1.el8.noarch.rpm osbuild-ostree-65-1.el8.noarch.rpm osbuild-selinux-65-1.el8.noarch.rpm python3-osbuild-65-1.el8.noarch.rpm
ppc64le: osbuild-composer-62-1.el8.ppc64le.rpm osbuild-composer-core-62-1.el8.ppc64le.rpm osbuild-composer-core-debuginfo-62-1.el8.ppc64le.rpm osbuild-composer-debuginfo-62-1.el8.ppc64le.rpm

Read the Full Advisory


Severity
low
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2022:7548-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2022:7548
Issue date: 2022-11-08

Topic

An update for cockpit-composer, osbuild, osbuild-composer, and weldr-clientis now available for Red Hat Enterprise Linux 8.Red Hat Product Security has rated this update as having a security impactof Low. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory Red Hat bug fix DoS security fix Image Builder osbuild

Relevant Releases Architectures

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

2059867 - Update osbuild to the newest upstream version in RHEL 8.7

2059868 - Update osbuild-composer to the newest upstream version in RHEL 8.7

2060063 - Rebase cockpit-composer to newest release for RHEL 8.7

2062694 - [cockpit-composer] RHEL 8.7 Tier 0 Localization

2065734 - Build fails for packages in blueprint that contain conditional dependencies

2104464 - [osbuild] Image builder does not support the use of a dot inside a username

2113814 - CVE-2022-32189 golang: math/big: decoding big.Float and big.Rat types can panic if the encoded message is too short, potentially allowing a denial of service

2118829 - Backport test changes for new osbuild-composer

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