Red Hat Enterprise Linux (GLib): Schwachstelle ermöglicht Denial of Service
WID-SEC-2025-1546 · first 15.07.2025 · updated 22.01.2026 · CVSS 4,8
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux GLib ausnutzen, um einen Denial of Service Angriff durchzuführen.
Under what conditions?
Over the network and without logging in. This is the most dangerous combination: attackers can scan reachable devices automatically.
What can happen in the worst case
An attacker could use the vulnerability to
- einen Denial of Service Angriff durchzuführen
Am I affected?
Affected according to the BSI:
- Debian Linux
- Red Hat Enterprise Linux
- SUSE Linux
- Oracle Linux
- NetApp FAS
- NetApp AFF
- IBM Storwize
- IBM Power Hardware Management Console v10
- IBM App Connect Enterprise
- IBM MQ Operator
- NetApp ActiveIQ Unified Manager
- Red Hat OpenShift Container Platform
and 5 more
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Red Hat Enterprise Linux 10
- Dell Secure Connect Gateway Appliance 5.32.00.18
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- Red Hat Security Advisory vom 2025-07-14 access.redhat.com
- Red Hat Security Advisory CVE-2025-4373 access.redhat.com
- Oracle Linux Security Advisory ELSA-2025-11140 vom 2025-07-16 linux.oracle.com
- Red Hat Security Advisory RHSA-2025:11140 vom 2025-07-15 access.redhat.com
- Oracle Linux Security Advisory ELSA-2025-11327 vom 2025-07-17 linux.oracle.com
- Red Hat Security Advisory RHSA-2025:11327 vom 2025-07-17 access.redhat.com
- SUSE Security Update SUSE-SU-2025:20471-1 vom 2025-07-16 lists.suse.com
- Oracle Linux Security Advisory ELSA-2025-10855 vom 2025-07-17 linux.oracle.com
- Red Hat Security Advisory RHSA-2025:11373 vom 2025-07-17 access.redhat.com
- Red Hat Security Advisory RHSA-2025:11374 vom 2025-07-17 access.redhat.com
- SUSE Security Update SUSE-SU-2025:02375-1 vom 2025-07-18 lists.suse.com
- Red Hat Security Advisory RHSA-2025:11675 vom 2025-07-29 access.redhat.com
- Red Hat Security Advisory RHSA-2025:12275 vom 2025-07-30 access.redhat.com
- Red Hat Security Advisory RHSA-2025:12450 vom 2025-07-31 access.redhat.com
- Red Hat Security Advisory RHSA-2025:12447 vom 2025-07-31 access.redhat.com
- SUSE Security Update SUSE-SU-2025:20508-1 vom 2025-08-04 lists.suse.com
- Red Hat Security Advisory RHSA-2025:13276 vom 2025-08-07 access.redhat.com
- IBM Security Bulletin 7241673 vom 2025-08-07 www.ibm.com
- Red Hat Security Advisory RHSA-2025:13335 vom 2025-08-07 access.redhat.com
- Red Hat Security Advisory RHSA-2025:14989 vom 2025-09-02 access.redhat.com
- Red Hat Security Advisory RHSA-2025:14988 vom 2025-09-02 access.redhat.com
- Red Hat Security Advisory RHSA-2025:14990 vom 2025-09-02 access.redhat.com
- Red Hat Security Advisory RHSA-2025:14991 vom 2025-09-02 access.redhat.com
- IBM Security Bulletin 7243787 vom 2025-09-02 www.ibm.com
- IBM Security Bulletin 7244160 vom 2025-09-05 www.ibm.com
and 6 more sources in the original advisory
CVE: CVE-2025-4373
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.