USN-3955-1: tcpflow vulnerabilities

24 April 2019

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

  • 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
Ubuntu 18.04
Ubuntu 16.04

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