Heap Buffer Overflow Vulnerability in Matio Package
Summary
OSV-2026-752: Heap-buffer-overflow in Mat_VarGetStructsLinear. Affects matio versions >= ac1c67c687533d2de55f96709ed4512d4c197801, < b838137cf3434bfe98bd9f1da904cb83eff4b804. Fixed in b838137cf3434bfe98bd9f1da904cb83eff4b804. How to fix ↓
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Background
Matio is an open-source library designed for reading and writing MAT files, which are commonly used in MATLAB for storing data. It provides functionalities to manipulate complex data structures and is widely utilized in scientific computing and data analysis. However, like many software libraries, it is susceptible to vulnerabilities that can compromise its integrity and security.
Vulnerability Detail
The vulnerability identified is a heap buffer overflow in the function Mat_VarGetStructsLinear. This issue arises from improper handling of memory allocation, allowing an attacker to write beyond the allocated buffer. The consequences of this vulnerability can lead to application crashes, data corruption, or even arbitrary code execution, posing significant risks to systems that rely on the Matio library for data processing.
How To Fix
Minimum fixed version
b838137cf3434bfe98bd9f1da904cb83eff4b804
This is the first release that contains the fix.
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Workaround
As a temporary workaround, users are advised to avoid using the Mat_VarGetStructsLinear function until the package is updated. Additionally, implementing input validation and sanitization can help mitigate the risks associated with this vulnerability.
Conclusion
The heap buffer overflow vulnerability in the Matio package poses significant risks to applications that utilize this library for data processing. It is crucial for users to update to the patched version to ensure the security and integrity of their applications. Implementing workarounds and monitoring for vulnerabilities can further enhance security.
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FAQ
A heap buffer overflow occurs when a program writes more data to a buffer located on the heap than it can hold, potentially overwriting adjacent memory and leading to unpredictable behavior.
Exploitation of this vulnerability can lead to application crashes, data corruption, or unauthorized code execution, which can compromise the security of your application.
Yes, a patch is available. Users should update to the fixed version of the Matio package to mitigate this vulnerability.
If immediate updates are not possible, avoid using the vulnerable function and implement input validation to reduce the risk of exploitation.
You can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities using just a manifest file like package-lock.json. You can check if your application is affected by this vulnerability using the Vulert playground without any signup.
References
Related vulnerabilities
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