Heap Buffer Overflow Vulnerability in nsmd Package
Summary
OSV-2026-1022: Heap-buffer-overflow in decode_common_resp. Affects nsmd versions >= 62de34e8b8bda9eab592ad737b7fbb3924a55e89. No fix is published. How to fix ↓
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Background
The nsmd package is a component used in various applications for managing network services. It is designed to facilitate communication and data processing in networked environments. However, like many software packages, it can be susceptible to vulnerabilities that may compromise its functionality and security. This specific vulnerability relates to a heap buffer overflow, which can lead to unauthorized access or crashes in the application.
Vulnerability Detail
The vulnerability identified is a heap buffer overflow occurring in the decode_common_resp function of the nsmd package. This issue was reported through OSS-Fuzz, indicating that it can be exploited during the decoding process, potentially allowing an attacker to read beyond allocated memory. The crash state indicates that the overflow can lead to application instability or crashes, which may be leveraged by malicious actors to execute arbitrary code or disrupt service.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
As a temporary workaround, you can limit the input size to the decode_common_resp function to prevent it from processing excessively large data that could trigger the buffer overflow. Implement input validation checks to ensure that the data being processed does not exceed expected limits.
Conclusion
The heap buffer overflow vulnerability in the nsmd package poses significant risks to applications utilizing this component. It is crucial to address this issue promptly by updating to the latest version or implementing workarounds to mitigate potential exploitation. Regular monitoring for vulnerabilities using tools like Vulert can help maintain the security of your software.
See every vulnerability recorded for nsmd →
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 access to sensitive information, compromising the security and stability of your application.
Yes, a patched version of the nsmd package is available. It is advisable to update to this version to mitigate the vulnerability.
You can use Vulert, which monitors open-source vulnerabilities in your software by analyzing your manifest file like package-lock.json. Visit the Vulert playground to check for vulnerabilities without needing to sign up.
If immediate updates are not feasible, implement input validation and limit the size of data processed by the vulnerable function as a temporary measure to reduce risk.
References
Related vulnerabilities
Recent vulnerabilities recorded for nsmd.
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