Home » libvirt: New security vulnerability! Vulnerability enables denial of service

libvirt: New security vulnerability! Vulnerability enables denial of service

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libvirt: New security vulnerability!  Vulnerability enables denial of service

As the BSI currently reports, a vulnerability has been identified for libvirt. You can read about which operating systems and products are affected by the security gap here on news.de.

The Federal Office for Security in Information Technology (BSI) issued a security advisory for libvirt on March 14, 2024. The operating systems UNIX, Linux and Windows as well as the open source libvirt product are affected by the security vulnerability.

The latest manufacturer recommendations regarding updates, workarounds and security patches for this vulnerability can be found here: Red Hat Bugtracker #2269672 (Stand: 15.03.2024).

Security advisory for libvirt – Risk: medium

Risk level: 3 (medium)
CVSS Base Score: 5,5
CVSS Temporal Score: 4,8
Remote attack: No

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. According to the CVSS, the severity of the current vulnerability is rated as “medium” with a base score of 5.5.

libvirt Bug: Vulnerability enables denial of service

Libvirt is a library that provides interfaces to the virtualization functions of Linux and provides tools for managing virtualized systems.

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A local attacker could exploit a vulnerability in libvirt to perform a denial of service attack.

The vulnerability is identified with the unique CVE (Common Vulnerabilities and Exposures) serial number. CVE-2024-2496 traded.

Systems affected by the libvirt security vulnerability at a glance

Operating systems
UNIX, Linux, Windows

Open Source libvirt

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 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.

Red Hat bug tracker #2269672 from 2024-03-15 (14.03.2024)
For more information, see:

Version history of this security alert

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

March 14, 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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