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MIT Kerberos: IT security warning about new bug

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MIT Kerberos: IT security warning about new bug

The BSI has published a current IT security notice for MIT Kerberos. You can find out more about the affected operating systems and products as well as CVE numbers here on news.de.

The Federal Office for Security in Information Technology (BSI) issued a security advisory for MIT Kerberos on February 26, 2024. The operating systems UNIX, Linux and Windows as well as the MIT Kerberos product are affected by the security vulnerability.

The latest manufacturer recommendations regarding updates, workarounds and security patches for this vulnerability can be found here: GitHub LuMingYinDetect (As of February 26, 2024). Other useful resources are listed later in this article.

MIT Kerberos Security Advisory – Risk: medium

Risk level: 3 (medium)
CVSS Base Score: 7,5
CVSS Temporal Score: 6,9
Remoteangriff: Ja

The Common Vulnerability Scoring System (CVSS) is used to assess the vulnerability of computer systems. The CVSS standard makes it possible to compare potential or actual security vulnerabilities based on various criteria in order to better prioritize countermeasures. The attributes “none”, “low”, “medium”, “high” and “critical” are used to determine the severity levels of a vulnerability. The Base Score evaluates the requirements for an attack (including authentication, complexity, privileges, user interaction) and its consequences. With the temporal score, framework conditions that can change over time are taken into account in the evaluation. The severity of the vulnerability discussed here is classified as “medium” according to the CVSS with a base score of 7.5.

MIT Kerberos Bug: Multiple vulnerabilities enable denial of service

Kerberos is a distributed network authentication service. MIT Kerberos is the free implementation of the “Kerberos network authentication protocol” from the Massachusetts Institute of Technology (MIT).

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A remote, anonymous attacker can exploit multiple vulnerabilities in MIT Kerberos to conduct a denial of service attack.

The vulnerability is identified with the unique CVE (Common Vulnerabilities and Exposures) identification numbers. CVE-2024-26462, CVE-2024-26461 und CVE-2024-26458 traded.

Systems affected by the security gap at a glance

Operating systems
UNIX, Linux, Windows

MIT Kerberos krb5-1.21.2 (cpe:/a:mit:kerberos)

General recommendations for dealing with IT security gaps

Users of the affected applications should keep them up to date. When security gaps become known, manufacturers are required to fix them as quickly as possible by developing a patch or a workaround. If new security updates are available, install them as soon as possible. For information, consult the sources listed in the next section. These often contain further information about the latest version of the software in question as well as the availability of security patches or information about workarounds. If you have any further questions or uncertainties, please contact your responsible administrator. IT security managers should regularly check when the IT security warning Affected manufacturers provide a new security update.

Manufacturer information on updates, patches and workarounds

Here you will find further links with information about bug reports, security fixes and workarounds.

GitHub LuMingYinDetect vom 2024-02-26 (26.02.2024)
For more information, see:

Mitre Vulnerability Database vom 2024-02-26 (26.02.2024)
For more information, see:

GitHub LuMingYinDetect vom 2024-02-26 (26.02.2024)
For more information, see:

Mitre Vulnerability Database vom 2024-02-26 (26.02.2024)
For more information, see:

GitHub LuMingYinDetect vom 2024-02-26 (26.02.2024)
For more information, see:

Mitre Vulnerability Database vom 2024-02-26 (26.02.2024)
For more information, see:

Version history of this security alert

This is the initial version of this IT security notice for MIT Kerberos. If updates are announced, this text will be updated. You can see the changes made using the version history below.

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02/26/2024 – Initial version

+++ Editorial note: This text was generated based on current BSI data and will be updated in a data-driven manner depending on the warning situation. We accept feedback and comments at [email protected]. +++

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Edited by kns


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