Double-Free Vulnerability in Biosig Package Leading to Arbitrary Code Execution
Summary
DEBIAN-CVE-2024-23809: A double-free vulnerability exists in the BrainVision ASCII Header Parsing functionality of The Biosig Project libbiosig 2.5.0 and Master Branch (ab0ee111). Affects biosig versions < 2.6.0-1. Fixed in 2.6.0-1. How to fix ↓
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Background
The Biosig Project provides the libbiosig library, which is designed for the processing and analysis of biosignal data. It supports various file formats, including the BrainVision ASCII Header format. The library is widely used in research and clinical settings for its ability to handle complex biosignal data efficiently. However, a critical vulnerability has been identified in versions prior to 2.6.0-1, which could allow attackers to exploit the library through specially crafted files.
Vulnerability Detail
A double-free vulnerability exists in the BrainVision ASCII Header Parsing functionality of the Biosig Project libbiosig versions 2.5.0 and earlier. This vulnerability arises from improper memory management, allowing an attacker to free the same memory location twice. By providing a maliciously crafted .vdhr file, an attacker can trigger this vulnerability, potentially leading to arbitrary code execution on the affected system. This poses significant security risks, as it could allow unauthorized access or control over the system running the vulnerable library.
How To Fix
Minimum fixed version
2.6.0-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade biosigTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users should avoid processing .vdhr files from untrusted sources until the package is updated to a secure version. Implementing strict file validation and sanitization can also help mitigate the risk of exploitation.
Conclusion
The identified double-free vulnerability in the Biosig package poses significant security risks, allowing for potential arbitrary code execution through specially crafted files. Users are strongly advised to update to the latest version to mitigate these risks and ensure the security of their systems.
See every vulnerability recorded for biosig →
FAQ
A double-free vulnerability occurs when a program attempts to free the same memory location more than once, which can lead to memory corruption and potential arbitrary code execution.
You can check if your application is affected by using the Vulert playground at Vulert Scanner, which allows you to monitor and alert for open-source vulnerabilities without requiring any installation.
Not fixing this vulnerability can expose your system to arbitrary code execution, allowing attackers to gain unauthorized access, manipulate data, or disrupt services.
Yes, avoid processing untrusted .vdhr files and implement strict file validation to mitigate the risk until the patch is applied.
More information about the Biosig Project and its functionalities can be found on its official website or documentation resources.
References
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