USN-3955-1: tcpflow vulnerabilities

Published Apr 24, 2019
·
Updated

It was discovered that tcpflow incorrectly handled certain malformed network packets. A remote attacker could send these packets to a target system, causing tcpflow to crash or possibly disclose sensitive information.

Affected Software

1 affected component
tcpflow

Event History

Feb 20, 2026
Advisory Published
via Ubuntu·05:12 PM
Data Sourced
via Ubuntu·05:12 PM
DescriptionAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of USN-3955-1?

The severity of USN-3955-1 is considered to be high due to the potential for crashes and information disclosure.

2

How do I fix USN-3955-1?

To fix USN-3955-1, upgrade to the latest version of tcpflow or tcpflow-nox that addresses this vulnerability.

3

What are the affected versions listed in USN-3955-1?

The affected versions in USN-3955-1 include tcpflow and tcpflow-nox for Ubuntu releases 16.04, 18.04, and 18.10.

4

Can USN-3955-1 be exploited remotely?

Yes, USN-3955-1 can be exploited remotely by sending malformed network packets to a vulnerable system.

5

What are the potential impacts of USN-3955-1?

The potential impacts of USN-3955-1 include crashes of the tcpflow service and possible exposure of sensitive information.

Contact

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