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Ubuntu 20.04 LTS: USN-6431-1 Critical: Iperf3 Denial of Service Risk

ubuntu
Calendar Grey October 16, 2023
Dist Ubuntu Esm H88
Ubuntu Security Notice USN-6432-1 pertains to vulnerabilities in libcurl affecting various versions and provides recommendations for updates.
Several security issues were fixed in iperf3.

Summary

Several security issues were fixed in iperf3.

Software Description:

- iperf3: Internet Protocol bandwidth measuring tool

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)

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 update instructions ubuntu iperf3

Update Instructions

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

Ubuntu 20.04 LTS (Available with Ubuntu Pro):
   iperf3                          3.7-3ubuntu0.1~esm1
   libiperf0                       3.7-3ubuntu0.1~esm1

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   iperf3                          3.1.3-1ubuntu0.1~esm1
   libiperf0                       3.1.3-1ubuntu0.1~esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   iperf3                          3.0.11-1ubuntu0.1~esm2
   libiperf0                       3.0.11-1ubuntu0.1~esm2

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

References

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

  CVE-2023-38403, https://bugs.launchpad.net/ubuntu/+source/iperf3/+bug/2038654

Severity
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Ubuntu Security Notice USN-6431-1

Topics%20covered

Topics Covered

security advisory denial of service critical update instructions ubuntu iperf3

Package Information

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