The BSI has published a current IT security advisory for the Linux kernel. Several vulnerabilities have been identified. 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 the Linux kernel on January 29, 2024. The report lists several vulnerabilities that can be exploited by attackers. The security vulnerability affects the Linux operating system and the Open Source Linux Kernel product.
The latest manufacturer recommendations regarding updates, workarounds and security patches for this vulnerability can be found here: NIST Vulnerability Database (As of January 28, 2024). Other useful resources are listed later in this article.
Multiple Linux Kernel Vulnerabilities Reported – Risk: Medium
Risk level: 5 (medium)
CVSS Base Score: 7,5
CVSS Temporal Score: 6,5
Remoteangriff: Ja
The Common Vulnerability Scoring System (CVSS) is used to assess the severity of vulnerabilities in computer systems. The CVSS standard makes it possible to compare potential or actual security vulnerabilities based on various metrics 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. According to the CVSS, the threat of the vulnerability discussed here is rated as “medium” with a base score of 7.5.
Linux Kernel Bug: Description of the attack
The kernel represents the core of the Linux operating system.
An attacker can exploit multiple vulnerabilities in the Linux kernel to elevate privileges, cause a denial of service, or execute arbitrary code.
The vulnerability is identified with the individual CVE (Common Vulnerabilities and Exposures) serial numbers. CVE-2024-0841 and CVE-2023-6200 traded.
Systems affected by the security gap at a glance
operating system
Linux
Products
Open Source Linux Kernel (cpe:/o:linux:linux_kernel)
General recommendations for dealing with IT vulnerabilities
Users of the affected systems 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 become 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.
NIST Vulnerability Database vom 2024-01-28 (29.01.2024)
For more information, see:
GitHub Advisory Database vom 2024-01-28 (29.01.2024)
For more information, see:
NIST Vulnerability Database vom 2024-01-28 (29.01.2024)
For more information, see:
GitHub Advisory Database vom 2024-01-28 (29.01.2024)
For more information, see:
Version history of this security alert
This is the initial version of this IT security notice for the Linux kernel. This text will be updated as updates are announced. You can read about changes or additions in this version history.
01/29/2024 – 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
roj/news.de