MIT Kerberos: Mehrere Schwachstellen ermöglichen Denial of Service
WID-SEC-2024-0485 · first 27.02.2024 · updated 08.07.2026 · CVSS 7,5
What it is about
Kerberos ist ein verteilter Netzwerkdienst zur Authentifizierung. MIT Kerberos ist die freie Implementierung des "Kerberos network authentication protocol", des Massachusetts Institute of Technology (MIT). Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in MIT Kerberos 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:
- Amazon Linux 2
- Red Hat Enterprise Linux
- Fedora Linux
- Ubuntu Linux
- SUSE Linux
- Oracle Linux
- EMC Avamar
- Dell NetWorker
- NetApp ActiveIQ Unified Manager
- IBM Security Guardium 12.0
- MIT Kerberos krb5-1.21.2
- IBM QRadar SIEM <7.5.0 UP9
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:
- IBM QRadar SIEM 7.5.0 UP9
- Dell ECS 3.8.1.2
- IBM QRadar SIEM 7.5.0 UP10 IF01
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)
- Mitre Vulnerability Database vom 2024-02-26 cve.mitre.org
- GitHub LuMingYinDetect vom 2024-02-26 github.com
- Mitre Vulnerability Database vom 2024-02-26 cve.mitre.org
- GitHub LuMingYinDetect vom 2024-02-26 github.com
- Mitre Vulnerability Database vom 2024-02-26 cve.mitre.org
- GitHub LuMingYinDetect vom 2024-02-26 github.com
- SUSE Security Update SUSE-SU-2024:0997-1 vom 2024-03-26 lists.suse.com
- SUSE Security Update SUSE-SU-2024:0997-1 vom 2024-03-26 lists.suse.com
- SUSE Security Update SUSE-SU-2024:0999-1 vom 2024-03-26 lists.suse.com
- SUSE Security Update SUSE-SU-2024:0997-1 vom 2024-03-26 lists.suse.com
- SUSE Security Update SUSE-SU-2024:1001-1 vom 2024-03-27 lists.suse.com
- SUSE Security Update SUSE-SU-2024:1006-1 vom 2024-03-27 lists.suse.com
- SUSE Security Update SUSE-SU-2024:1148-1 vom 2024-04-08 lists.suse.com
- NetApp Security Advisory NTAP-20240415-0010 vom 2024-04-15 security.netapp.com
- Red Hat Security Advisory RHSA-2024:3268 vom 2024-05-22 access.redhat.com
- Oracle Linux Security Advisory ELSA-2024-3268 vom 2024-05-30 linux.oracle.com
- Amazon Linux Security Advisory ALAS-2024-2512 vom 2024-06-28 alas.aws.amazon.com
- Fedora Security Advisory FEDORA-2024-BDC305FE55 vom 2024-07-09 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-2024-1F68985052 vom 2024-07-09 bodhi.fedoraproject.org
- Fedora Security Advisory FEDORA-2024-DF2C70DBA9 vom 2024-07-09 bodhi.fedoraproject.org
- IBM Security Bulletin 7160134 vom 2024-07-12 www.ibm.com
- Dell Security Advisory DSA-2024-348 vom 2024-08-06 www.dell.com
- Dell Security Advisory DSA-2024-412 vom 2024-09-30 www.dell.com
- Dell Security Advisory DSA-2024-422 vom 2024-10-10 www.dell.com
- IBM Security Bulletin www.ibm.com
and 9 more sources in the original advisory
CVE: CVE-2024-26458, CVE-2024-26461, CVE-2024-26462
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.