RLSA-2026:3840

Synopsis

Important: image-builder security update

Description

A local binary for building customized OS artifacts such as VM images and OSTree commits. Uses osbuild under the hood.

Security Fix(es):

* crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate (CVE-2025-61729)

* golang: net/url: Memory exhaustion in query parameter parsing in net/url (CVE-2025-61726)

* crypto/tls: Unexpected session resumption in crypto/tls (CVE-2025-68121)

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.

Affected products

Rocky Linux 10 aarch64 Rocky Linux 10 ppc64le Rocky Linux 10 s390x Rocky Linux 10 x86_64

Fixes

2434432 2437111 2418462

CVEs

CVE-2025-61726 CVE-2025-61729 CVE-2025-68121

Affected packages

Rocky Linux 10 s390x - AppStream

image-builder-debuginfo-0:31-4.el10_1.rocky.0.2.s390x.rpm image-builder-0:31-4.el10_1.rocky.0.2.s390x.rpm image-builder-0:31-4.el10_1.rocky.0.2.src.rpm image-builder-debugsource-0:31-4.el10_1.rocky.0.2.s390x.rpm

Rocky Linux 10 aarch64 - AppStream

image-builder-debugsource-0:31-4.el10_1.rocky.0.2.aarch64.rpm image-builder-debuginfo-0:31-4.el10_1.rocky.0.2.aarch64.rpm image-builder-0:31-4.el10_1.rocky.0.2.src.rpm image-builder-0:31-4.el10_1.rocky.0.2.aarch64.rpm

Rocky Linux 10 ppc64le - AppStream

image-builder-debuginfo-0:31-4.el10_1.rocky.0.2.ppc64le.rpm image-builder-0:31-4.el10_1.rocky.0.2.src.rpm image-builder-debugsource-0:31-4.el10_1.rocky.0.2.ppc64le.rpm image-builder-0:31-4.el10_1.rocky.0.2.ppc64le.rpm

Rocky Linux 10 x86_64 - AppStream

image-builder-debugsource-0:31-4.el10_1.rocky.0.2.x86_64.rpm image-builder-0:31-4.el10_1.rocky.0.2.src.rpm image-builder-0:31-4.el10_1.rocky.0.2.x86_64.rpm image-builder-debuginfo-0:31-4.el10_1.rocky.0.2.x86_64.rpm