Home » Linux Kernel: New Vulnerability! Vulnerability allows unspecified attack

Linux Kernel: New Vulnerability! Vulnerability allows unspecified attack

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Linux Kernel: New Vulnerability!  Vulnerability allows unspecified attack

As the BSI is currently reporting, a vulnerability has been found in the Linux kernel. You can read here on news.de which operating systems and products are affected by the vulnerability.

The Federal Office for Security in der Informationstechnik (BSI) published a security advisory for Linux kernels on June 9th, 2023. The Linux operating system and the product Open Source Linux Kernel are affected by the vulnerability.

The latest manufacturer recommendations regarding updates, workarounds and security patches for this vulnerability can be found here: RedHat Bugzilla (Stand: 08.06.2023).

Linux Kernel Security Advisory – Risk: Low

Risk level: 3 (low)
CVSS Base Score: 4,2
CVSS Temporal Score: 3,7
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 create a list of priorities for initiating countermeasures based on this. The attributes “none”, “low”, “medium”, “high” and “critical” are used for the severity of a vulnerability. The base score assesses the prerequisites for an attack (including authentication, complexity, privileges, user interaction) and its consequences. With the temporal score, framework conditions that change over time are included in the evaluation. The risk of the current vulnerability is classified as “low” according to the CVSS with a base score of 4.2.

Linux Kernel Bug: Vulnerability allows unspecified attack

The kernel represents the core of the Linux operating system.

A local attacker can exploit a vulnerability in the Linux kernel to perform an unspecified attack.

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The vulnerability was classified using the CVE designation system (Common Vulnerabilities and Exposures) by the individual serial number CVE-2023-3159.

Systems affected by the vulnerability at a glance

operating system

Open Source Linux Kernel 5.18-rc6 (cpe:/o:linux:linux_kernel)

General recommendations for dealing with IT security gaps

  1. Users of the affected applications should keep them up to date. When security gaps become known, manufacturers are required to remedy them as quickly as possible by developing a patch or a workaround. If security patches are available, install them promptly.
  2. For information, consult the sources listed in the next section. These often contain further information on the latest version of the software in question and the availability of security patches or tips on workarounds.
  3. If you have any further questions or are uncertain, please contact your responsible administrator. IT security officers should regularly check when the IT security warning affected manufacturers makes a new security update available.

Manufacturer information on updates, patches and workarounds

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

RedHat Bugzilla from 2023-06-08 (09.06.2023)
For more information, see: https://bugzilla.redhat.com/show_bug.cgi?id=2213414

Version history of this security alert

This is the initial version of this IT security notice for Linux kernels. If updates are announced, this text will be updated. You can read about changes or additions in this version history.

06/09/2023 – Initial version

+++ Editorial note: This text was created with AI support based on current BSI data. We accept feedback and comments at zettel@news.de. +++

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