RLSA-2026:3839

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 9 aarch64 Rocky Linux 9 ppc64le Rocky Linux 9 s390x Rocky Linux 9 x86_64

Fixes

2418462 2434432 2437111

CVEs

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

Affected packages

Rocky Linux 9 aarch64 - AppStream

image-builder-0:31-3.el9_7.rocky.0.2.aarch64.rpm image-builder-0:31-3.el9_7.rocky.0.2.src.rpm image-builder-debuginfo-0:31-3.el9_7.rocky.0.2.aarch64.rpm image-builder-debugsource-0:31-3.el9_7.rocky.0.2.aarch64.rpm

Rocky Linux 9 ppc64le - AppStream

image-builder-0:31-3.el9_7.rocky.0.2.ppc64le.rpm image-builder-0:31-3.el9_7.rocky.0.2.src.rpm image-builder-debuginfo-0:31-3.el9_7.rocky.0.2.ppc64le.rpm image-builder-debugsource-0:31-3.el9_7.rocky.0.2.ppc64le.rpm

Rocky Linux 9 s390x - AppStream

image-builder-0:31-3.el9_7.rocky.0.2.s390x.rpm image-builder-0:31-3.el9_7.rocky.0.2.src.rpm image-builder-debuginfo-0:31-3.el9_7.rocky.0.2.s390x.rpm image-builder-debugsource-0:31-3.el9_7.rocky.0.2.s390x.rpm

Rocky Linux 9 x86_64 - AppStream

image-builder-0:31-3.el9_7.rocky.0.2.src.rpm image-builder-0:31-3.el9_7.rocky.0.2.x86_64.rpm image-builder-debuginfo-0:31-3.el9_7.rocky.0.2.x86_64.rpm image-builder-debugsource-0:31-3.el9_7.rocky.0.2.x86_64.rpm