Alerts This Week
Warning Icon 1 758
Alerts This Week
Warning Icon 1 758

Ubuntu 22.04 LTS USN-6431-3 Critical: iperf3 Denial Of Service

ubuntu
Calendar Grey October 16, 2023
Dist Ubuntu Esm H88
Ubuntu Security Notice USN-6431-3 has critical updates for iperf3, addressing denial of service vulnerabilities. Users should apply security patches urgently.
iperf3 could be made to to stop responding if it received specially crafted network traffic.

Summary

iperf3 could be made to to stop responding if it received specially

crafted network traffic.

Software Description:

- 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)

Topics%20covered

Topics Covered

security advisory denial of service critical ubuntu network issue iperf3

Update Instructions

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

Ubuntu 22.04 LTS (Available with Ubuntu Pro):
   iperf3                          3.9-1+deb11u1ubuntu0.1~esm1
   libiperf0                       3.9-1+deb11u1ubuntu0.1~esm1

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

References

  https://ubuntu.com/security/notices/USN-6431-3

  https://ubuntu.com/security/notices/USN-6431-1

  https://bugs.launchpad.net/ubuntu/+source/iperf3/+bug/2038654

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6431-3

Topics%20covered

Topics Covered

security advisory denial of service critical ubuntu network issue iperf3

Package Information

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here