1. Ubuntu Security Notices
  2. USN-3955-1

USN-3955-1: tcpflow vulnerabilities

Publication date

24 April 2019

Overview

tcpflow could be made to crash or expose sensitive information over the network if it opened a specially crafted file or received specially crafted network traffic.

Releases

Packages

Details

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.

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.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
18.10 cosmic tcpflow –  1.4.5+repack1-4ubuntu0.18.10.1
tcpflow-nox –  1.4.5+repack1-4ubuntu0.18.10.1
18.04 bionic tcpflow –  1.4.5+repack1-4ubuntu0.18.04.1
tcpflow-nox –  1.4.5+repack1-4ubuntu0.18.04.1
16.04 xenial tcpflow –  1.4.5+repack1-1ubuntu0.1
tcpflow-nox –  1.4.5+repack1-1ubuntu0.1

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References

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