There is a current IT security warning for OpenSSL. You can find out what the vulnerability is, which products are affected and what you can do here.
The Federal Office for Security in Information Technology (BSI) reported a security advisory for OpenSSL on January 24th, 2024. The operating systems UNIX, Linux, MacOS X and Windows as well as the open source OpenSSL product are affected by the security vulnerability.
The latest manufacturer recommendations regarding updates, workarounds and security patches for this vulnerability can be found here: OpenSSL Github (As of January 23, 2024). Other useful links are listed later in this article.
Security notice for OpenSSL – Risk: medium
Risk level: 3 (medium)
CVSS Base Score: 7,5
CVSS Temporal Score: 6,5
Remoteangriff: Ja
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. The temporal score also takes changes over time in the danger situation into account. According to the CVSS, the severity of the current vulnerability is rated as “medium” with a base score of 7.5.
OpenSSL Bug: Vulnerability enables denial of service
OpenSSL is a freely available source code library that implements Secure Sockets Layer (SSL) and Transport Layer Security (TLS).
An attacker could exploit a vulnerability in OpenSSL to carry out a denial of service attack.
The vulnerability was classified using the CVE (Common Vulnerabilities and Exposures) referencing system by the individual serial number CVE-2024-0727.
Systems affected by the OpenSSL security vulnerability at a glance
Operating systems
UNIX, Linux, MacOS X, Windows
Products
Open Source OpenSSL (cpe:/a:openssl:openssl)
General recommendations for dealing with IT security gaps
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.
OpenSSL Github vom 2024-01-23 (24.01.2024)
For more information, see:
Red Hat Bugzilla dated 2024-01-23 (24.01.2024)
For more information, see:
Version history of this security alert
This is the initial version of this IT security notice for OpenSSL. If updates are announced, this text will be updated. You can see the changes made using the version history below.
01/24/2024 – 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