As the BSI reports, the IT security warning regarding a known vulnerability for the Linux kernel has received an update. 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) released an update on May 2nd, 2024 to a security vulnerability for the Linux kernel that became known on March 17th, 2024. The security vulnerability affects the Linux operating system and the products Red Hat Enterprise Linux Server EUS, Ubuntu Linux, SUSE Linux and Open Source Linux Kernel.
The latest manufacturer recommendations regarding updates, workarounds and security patches for this vulnerability can be found here: SUSE Security Update SUSE-SU-2024:1490-1 (As of: May 3, 2024). Other useful resources are listed later in this article.
Linux Kernel Security Advisory – 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 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. With the temporal score, framework conditions that can change over time are taken into account in the evaluation. According to the CVSS, the threat of the current vulnerability is classified as “medium” with a base score of 5.5.
Linux Kernel Bug: Multiple vulnerabilities allow denial of service and unspecified attacks
The kernel represents the core of the Linux operating system.
A local attacker can exploit multiple vulnerabilities in the Linux kernel to cause a denial of service or conduct an unspecified attack.
The vulnerability is identified with the unique CVE (Common Vulnerabilities and Exposures) identification numbers. CVE-2023-52609, CVE-2023-52610, CVE-2023-52611, CVE-2023-52612, CVE-2023-52613, CVE-2023-52614, CVE-2023-52615, CVE-2023-52616, CVE-2023-52617, CVE-2023-52618, CVE-2023-52619, CVE-2024-26631, CVE-2024-26632, CVE-2024-26633, CVE-2024-26634, CVE-2024-26635, CVE-2024-26636, CVE-2024-26637, CVE-2024-26638, CVE-2024-26639, CVE-2024-26640 und CVE-2024-26641 traded.
Systems affected by the security gap at a glance
operating system
Linux
Products
Red Hat Enterprise Linux (cpe:/o:redhat:enterprise_linux)
Ubuntu Linux (cpe:/o:canonical:ubuntu_linux)
SUSE Linux (cpe:/o:suse:suse_linux)
Open Source Linux Kernel (cpe:/o:linux:linux_kernel)
General measures 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 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 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.
SUSE Security Update SUSE-SU-2024:1490-1 vom 2024-05-03 (02.05.2024)
For more information, see:
SUSE Security Update SUSE-SU-2024:1480-1 vom 2024-04-30 (01.05.2024)
For more information, see:
Red Hat Security Advisory RHSA-2024:2394 vom 2024-04-30 (29.04.2024)
For more information, see:
SUSE Security Update SUSE-SU-2024:1466-1 vom 2024-04-29 (29.04.2024)
For more information, see:
SUSE Security Update SUSE-SU-2024:1322-2 vom 2024-04-18 (18.04.2024)
For more information, see:
SUSE Security Update SUSE-SU-2024:1332-2 vom 2024-04-18 (18.04.2024)
For more information, see:
SUSE Security Update SUSE-SU-2024:1332-1 vom 2024-04-18 (18.04.2024)
For more information, see:
Ubuntu Security Notice USN-6726-3 vom 2024-04-17 (17.04.2024)
For more information, see:
SUSE Security Update SUSE-SU-2024:1322-1 vom 2024-04-17 (16.04.2024)
For more information, see:
Ubuntu Security Notice USN-6726-2 vom 2024-04-16 (16.04.2024)
For more information, see:
Ubuntu Security Notice USN-6725-2 vom 2024-04-16 (16.04.2024)
For more information, see:
Ubuntu Security Notice USN-6726-1 vom 2024-04-09 (09.04.2024)
For more information, see:
Ubuntu Security Notice USN-6725-1 vom 2024-04-09 (09.04.2024)
For more information, see:
CVE Announcement on lore.kernel.org dated 2024-03-17 (17.03.2024)
For more information, see:
CVE Announcement on lore.kernel.org dated 2024-03-17 (17.03.2024)
For more information, see:
CVE Announcement on lore.kernel.org dated 2024-03-17 (17.03.2024)
For more information, see:
CVE Announcement on lore.kernel.org dated 2024-03-17 (17.03.2024)
For more information, see:
CVE Announcement on lore.kernel.org dated 2024-03-17 (17.03.2024)
For more information, see:
CVE Announcement on lore.kernel.org dated 2024-03-17 (17.03.2024)
For more information, see:
CVE Announcement on lore.kernel.org dated 2024-03-17 (17.03.2024)
For more information, see:
CVE Announcement on lore.kernel.org dated 2024-03-17 (17.03.2024)
For more information, see:
CVE Announcement on lore.kernel.org dated 2024-03-17 (17.03.2024)
For more information, see:
CVE Announcement on lore.kernel.org dated 2024-03-17 (17.03.2024)
For more information, see:
CVE Announcement on lore.kernel.org dated 2024-03-17 (17.03.2024)
For more information, see:
CVE Announcement on lore.kernel.org dated 2024-03-17 (17.03.2024)
For more information, see:
CVE Announcement on lore.kernel.org dated 2024-03-17 (17.03.2024)
For more information, see:
CVE Announcement on lore.kernel.org dated 2024-03-17 (17.03.2024)
For more information, see:
Version history of this security alert
This is the 9th version of this IT security notice for Linux kernel. This text will be updated as further updates are announced. You can see the changes made using the version history below.
March 17, 2024 – Initial version
03/18/2024 – duplicate entry removed
04/09/2024 – New updates of Ubuntu added
April 16, 2024 – New updates of Ubuntu added
April 17, 2024 – New updates of Ubuntu added
April 18, 2024 – New updates from SUSE added
April 29, 2024 – New updates from SUSE added
May 1, 2024 – New updates from SUSE added
May 2, 2024 – New updates from SUSE added
+++ 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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