There is a current security warning from the BSI for Red Hat Enterprise Linux (Libreswan). Here you can find out what threatens the IT security of Linux systems, how high the risk is and what affected users should pay attention to.
The Federal Office for Security in Information Technology (BSI) published a security advisory for Red Hat Enterprise Linux (Libreswan) on April 23, 2024. The security vulnerability affects the Linux operating system and the Red Hat Enterprise Linux product.
The latest manufacturer recommendations regarding updates, workarounds and security patches for this vulnerability can be found here: Red Hat Security Advisory RHSA-2024:2033 (As of April 24, 2024). Other useful links are listed later in this article.
Security Advisory for Red Hat Enterprise Linux (Libreswan) – Risk: Medium
Risk level: 3 (medium)
CVSS Base Score: 5,0
CVSS Temporal Score: 4,4
Remote attack: No
The Common Vulnerability Scoring System (CVSS) is used to assess the severity of security vulnerabilities in 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. The temporal score also takes changes over time in the danger situation into account. The risk of the vulnerability discussed here is classified as “medium” according to the CVSS with a base score of 5.0.
Red Hat Enterprise Linux (Libreswan) Bug: Vulnerability enables denial of service
Red Hat Enterprise Linux (RHEL) is a popular Linux distribution.
A local attacker could exploit a vulnerability in Red Hat Enterprise Linux in Libreswan to conduct a denial of service attack.
The vulnerability was classified using the CVE (Common Vulnerabilities and Exposures) referencing system by the individual serial number CVE-2024-2357.
Systems affected by the security gap at a glance
operating system
Linux
Products
Red Hat Enterprise Linux (cpe:/o:redhat:enterprise_linux)
Red Hat Enterprise Linux libreswan Red Hat Enterprise Linux libreswan
General measures for dealing with IT vulnerabilities
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 security patches are available, install them promptly. 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 the sources mentioned to see whether a new security update is available.
Manufacturer information on updates, patches and workarounds
Here you will find further links with information about bug reports, security fixes and workarounds.
Red Hat Security Advisory RHSA-2024:2033 vom 2024-04-24 (23.04.2024)
For more information, see:
Red Hat Bugzilla CVE-2024-2357 (23.04.2024)
For more information, see:
Red Hat Security Advisory vom 2024-04-23 (23.04.2024)
For more information, see:
Version history of this security alert
This is the initial version of this IT security notice for Red Hat Enterprise Linux (Libreswan). This text will be updated as updates are announced. You can see the changes made using the version history below.
April 23, 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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