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An iperf3 security update has been released for Debian GNU/Linux 10 LTS to address a memory allocation issue.

[SECURITY] [DLA 3506-1] iperf3 security update

Debian LTS Advisory DLA-3506-1 Markus Koschany
July 25, 2023

Package : iperf3
Version : 3.6-2+deb10u1
CVE ID : CVE-2023-38403
Debian Bug : 1040830

A memory allocation issue was found in iperf3, the Internet Protocol
bandwidth measuring tool, that may cause a denial of service when
encountering a certain invalid length value in TCP packets.

For Debian 10 buster, this problem has been fixed in version

We recommend that you upgrade your iperf3 packages.

For the detailed security status of iperf3 please refer to
its security tracker page at:

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: