USN-3955-1: tcpflow vulnerabilities

tcpflow vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

Ubuntu 18.10
Ubuntu 18.04 LTS
Ubuntu 16.04 LTS

Summary

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.

Software Description

tcpflow – TCP flow recorder

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.

Update instructions

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

Ubuntu 18.10: tcpflow – 1.4.5+repack1-4ubuntu0.18.10.1; tcpflow-nox – 1.4.5+repack1-4ubuntu0.18.10.1
Ubuntu 18.04 LTS: tcpflow – 1.4.5+repack1-4ubuntu0.18.04.1; tcpflow-nox – 1.4.5+repack1-4ubuntu0.18.04.1
Ubuntu 16.04 LTS: tcpflow – 1.4.5+repack1-1ubuntu0.1; tcpflow-nox – 1.4.5+repack1-1ubuntu0.1

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

Source: USN-3955-1: tcpflow vulnerabilities

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