Vulnerability in tcpdump - Denial of Service, Information Leakage, and Arbitrary Code Execution

tcpdump Updated 02 Oct 2025

Summary

03/12/2014
N/A
Yes i
Unrated
Not published

DSA-3086-1: tcpdump - security update. Affects tcpdump versions < 4.3.0-1+deb7u1. Fixed in 4.3.0-1+deb7u1. How to fix ↓

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Background

tcpdump is a command-line network traffic analyzer that allows users to capture and analyze network packets. It is widely used for troubleshooting network issues, monitoring network activity, and performing network security analysis. However, several vulnerabilities have been discovered in tcpdump, which could lead to denial of service, leaking sensitive information from memory, or potentially executing arbitrary code.

Vulnerability Detail

The vulnerabilities in tcpdump could be exploited by attackers to disrupt network traffic analysis, extract sensitive information from memory, or even execute arbitrary code on the affected system. These vulnerabilities pose a significant risk to the confidentiality, integrity, and availability of network communications and the systems running tcpdump.

How To Fix

Minimum fixed version

4.3.0-1+deb7u1

This is the first release that contains the fix.

sudo apt-get install --only-upgrade tcpdump

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Conclusion

The vulnerabilities in tcpdump pose significant risks to network security and system integrity. It is crucial to upgrade to the latest version of tcpdump to mitigate these vulnerabilities. For further support and guidance on vulnerability remediation, please contact DevNack.com.

See every vulnerability recorded for tcpdump →

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FAQ

tcpdump is a command-line network traffic analyzer that captures and analyzes network packets.

These vulnerabilities could lead to denial of service, information leakage, and potential execution of arbitrary code, posing risks to network security and system integrity.

You can use Vulert's playground at Vulert Scanner to check if your tcpdump package is affected by these vulnerabilities. Simply upload your package-lock.json file to the playground, and it will alert you in real-time if any vulnerabilities are detected.

At the moment, there are no known workarounds for these vulnerabilities. It is recommended to upgrade to the latest version of tcpdump to mitigate the risks.

For further support on vulnerability remediation, you can reach out to info@devnack.com. They can provide guidance and assistance in addressing the tcpdump vulnerabilities.

Related vulnerabilities

Recent vulnerabilities recorded for tcpdump.

How To Fix

Minimum fixed version

4.3.0-1+deb7u1

This is the first release that contains the fix.

sudo apt-get install --only-upgrade tcpdump

Tip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →

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