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Mozilla Firefox at risk: Warning of new IT security gap

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Mozilla Firefox at risk: Warning of new IT security gap

As the BSI currently reports, a vulnerability has been identified for Mozilla Firefox. You can read a description of the security vulnerability and a list of the affected operating systems and products here.

The Federal Office for Security in Information Technology (BSI) reported a security advisory for Mozilla Firefox on February 12, 2024. The security gap affects the iPhoneOS operating system and the Mozilla Firefox product.

The latest manufacturer recommendations regarding updates, workarounds and security patches for this vulnerability can be found here: Mozilla Bugzilla (Stand: 11.02.2024).

Security warning for Mozilla Firefox – Risk: medium

Risk level: 2 (medium)
CVSS Base Score: 6,5
CVSS Temporal Score: 5,7
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 risk of the current vulnerability is classified as “medium” with a base score of 6.5.

Mozilla Firefox Bug: Vulnerability allows information disclosure

Firefox is an open source web browser.

A remote, anonymous attacker could exploit a vulnerability in Mozilla Firefox to disclose information.

The vulnerability was classified using the CVE (Common Vulnerabilities and Exposures) referencing system by the individual serial number CVE-2024-0953.

Systems affected by the security gap at a glance

operating system

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Mozilla Firefox

General measures 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 when the IT security warning Affected manufacturers provide a new security update.

Sources of updates, patches and workarounds

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

Mozilla Bugzilla vom 2024-02-11 (12.02.2024)
For more information, see:

Version history of this security alert

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

02/12/2024 – 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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