Heap Buffer Overflow Vulnerability in PcapPlusPlus Package
Summary
OSV-2025-290: Heap-buffer-overflow in pcpp::TelnetLayer::toString. Affects pcapplusplus versions >= 813f15b87f5e76a62d64360f8cbdf449c21316e4. No fix is published. How to fix ↓
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Background
PcapPlusPlus is an open-source C++ library designed for packet processing and network analysis. It provides a high-level interface for working with various network protocols, making it easier for developers to create applications that require packet manipulation. The library is widely used in network security, monitoring, and analysis tools. However, it has been identified to have a heap buffer overflow vulnerability that can lead to potential crashes and security risks.
Vulnerability Detail
The vulnerability is a heap-buffer-overflow that occurs in the 'pcpp::TelnetLayer::toString' function. This issue can lead to a crash when the function is called, as it attempts to read beyond the allocated memory buffer. The vulnerability was introduced in the commit '813f15b87f5e76a62d64360f8cbdf449c21316e4' and has been reported in the OSS-Fuzz issue tracker. If exploited, this vulnerability could allow an attacker to cause a denial of service or potentially execute arbitrary code.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, avoid using the 'pcpp::TelnetLayer::toString' function until the package is updated. You can implement checks in your code to prevent calls to this function until the vulnerability is resolved.
Conclusion
The heap buffer overflow vulnerability in the PcapPlusPlus package poses significant risks to applications using this library. It is crucial to update to the latest version to mitigate these risks and ensure the security and stability of your applications. Utilizing tools like Vulert can help monitor and manage vulnerabilities effectively.
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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, leading to memory corruption and potential security vulnerabilities.
Exploiting this vulnerability can lead to application crashes, denial of service, or even arbitrary code execution, compromising the security of your application.
Yes, a patch is available. It is recommended to update to the latest version of the PcapPlusPlus package to mitigate this vulnerability.
You can use Vulert, which monitors and alerts in real-time for open-source vulnerabilities in your software by analyzing a manifest file like package-lock.json.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
References
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