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Red Hat has released new security updates for Red Hat Enterprise Linux, including kernel updates, Lasso security patches, Python updates, and Java OpenJDK fixes. Some of the listed updates are critical, while others are considered moderate or important in severity. The updates cover multiple areas, such as container platforms like OpenShift Container Platform 4.18.28, and other software packages like OpenSSL, libtiff, and buildah.

RHSA-2025:21492: Moderate: kernel security update
RHSA-2025:21462: Critical: lasso security update
RHSA-2025:21452: Critical: lasso security update
RHSA-2025:21448: Important: python-kdcproxy security update
RHSA-2025:21562: Moderate: openssl security update
RHSA-2025:19864: Moderate: OpenShift Container Platform 4.18.28 bug fix and security update
RHSA-2025:21507: Important: libtiff security update
RHSA-2025:21508: Important: libtiff security update
RHSA-2025:21506: Important: libtiff security update
RHSA-2025:21485: Moderate: java-25-openjdk security update
RHSA-2025:21469: Moderate: kernel security update
RHSA-2025:21463: Moderate: kernel security update
RHSA-2025:21634: Important: buildah security update
RHSA-2025:21633: Important: buildah security update
RHSA-2025:21628: Critical: lasso security update
RHSA-2025:21563: Moderate: kernel security update




RHSA-2025:21492: Moderate: kernel security update


An update for kernel is now available for Red Hat Enterprise Linux 10.0 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.


RHSA-2025:21492: Moderate: kernel security update



RHSA-2025:21462: Critical: lasso security update


An update for lasso is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.


RHSA-2025:21462: Critical: lasso security update



RHSA-2025:21452: Critical: lasso security update


An update for lasso is now available for Red Hat Enterprise Linux 9.6 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.


RHSA-2025:21452: Critical: lasso security update



RHSA-2025:21448: Important: python-kdcproxy security update


An update for python-kdcproxy is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.


RHSA-2025:21448: Important: python-kdcproxy security update



RHSA-2025:21562: Moderate: openssl security update


An update for openssl is now available for Red Hat Enterprise Linux 9.4 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.


RHSA-2025:21562: Moderate: openssl security update



RHSA-2025:19864: Moderate: OpenShift Container Platform 4.18.28 bug fix and security update


Red Hat OpenShift Container Platform release 4.18.28 is now available with updates to packages and images that fix several bugs and add enhancements.

This release includes a security update for Red Hat OpenShift Container Platform 4.18.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.


RHSA-2025:19864: Moderate: OpenShift Container Platform 4.18.28 bug fix and security update



RHSA-2025:21507: Important: libtiff security update


An update for libtiff is now available for Red Hat Enterprise Linux 9.4 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.


RHSA-2025:21507: Important: libtiff security update



RHSA-2025:21508: Important: libtiff security update


An update for libtiff is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.


RHSA-2025:21508: Important: libtiff security update



RHSA-2025:21506: Important: libtiff security update


An update for libtiff is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.


RHSA-2025:21506: Important: libtiff security update



RHSA-2025:21485: Moderate: java-25-openjdk security update


An update for java-25-openjdk is now available for Red Hat Enterprise Linux 10.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.


RHSA-2025:21485: Moderate: java-25-openjdk security update



RHSA-2025:21469: Moderate: kernel security update


An update for kernel is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.


RHSA-2025:21469: Moderate: kernel security update



RHSA-2025:21463: Moderate: kernel security update


An update for kernel is now available for Red Hat Enterprise Linux 10.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.


RHSA-2025:21463: Moderate: kernel security update



RHSA-2025:21634: Important: buildah security update


An update for buildah is now available for Red Hat Enterprise Linux 9.6 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.


RHSA-2025:21634: Important: buildah security update



RHSA-2025:21633: Important: buildah security update


An update for buildah is now available for Red Hat Enterprise Linux 10.0 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.


RHSA-2025:21633: Important: buildah security update



RHSA-2025:21628: Critical: lasso security update


An update for lasso is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Critical. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.


RHSA-2025:21628: Critical: lasso security update



RHSA-2025:21563: Moderate: kernel security update


An update for kernel is now available for Red Hat Enterprise Linux 9.6 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.


RHSA-2025:21563: Moderate: kernel security update