[USN-6431-2] iperf3 vulnerability

Jorge Sancho Larraz jorge.sancho.larraz at canonical.com
Mon Oct 16 14:33:01 UTC 2023

Ubuntu Security Notice USN-6431-2
October 16, 2023

iperf3 vulnerability

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

- Ubuntu 23.04
- Ubuntu 22.04 LTS


iperf3 could be made to crash if it received specially crafted network

Software Description:
- iperf3: Internet Protocol bandwidth measuring tool


USN-6431-1 fixed a vulnerability in iperf3. This update provides
the corresponding update for Ubuntu 22.04 LTS and Ubuntu 23.04.

Original advisory details:

  It was discovered that iperf3 did not properly manage certain inputs,
  which could lead to a crash. A remote attacker could possibly use this
  issue to cause a denial of service. (CVE-2023-38403)

Update instructions:

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

Ubuntu 23.04:
   iperf3                          3.12-1+deb12u1build0.23.04.1
   libiperf0                       3.12-1+deb12u1build0.23.04.1

Ubuntu 22.04 LTS:
   iperf3                          3.9-1+deb11u1build0.22.04.1
   libiperf0                       3.9-1+deb11u1build0.22.04.1

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


Package Information:

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