USN-6431-3: iperf3 vulnerability

Publication date

16 October 2023

Overview

iperf3 could be made to to stop responding if it received specially crafted network traffic.

Releases


Packages

  • iperf3 - Internet Protocol bandwidth measuring tool

Details

USN-6431-1 fixed a vulnerability in iperf3. This update provides
the corresponding update for Ubuntu 22.04 LTS.

Original advisory details:

Jorge Sancho Larraz discovered that iperf3 did not properly manage certain
inputs, which could cause the server process to stop responding, waiting
for input on the control connection. A remote attacker could possibly use
this issue to cause a denial of service. (LP: #2038654)

USN-6431-1 fixed a vulnerability in iperf3. This update provides
the corresponding update for Ubuntu 22.04 LTS.

Original advisory details:

Jorge Sancho Larraz discovered that iperf3 did not properly manage certain
inputs, which could cause the server process to stop responding, waiting
for input on the control connection. A remote attacker could possibly use
this issue to cause a denial of service. (LP: #2038654)

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
22.04 jammy iperf3 –  3.9-1+deb11u1ubuntu0.1~esm1  
libiperf0 –  3.9-1+deb11u1ubuntu0.1~esm1  

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