USN-6431-1

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Source
https://ubuntu.com/security/notices/USN-6431-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6431-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-6431-1
Upstream
Related
Published
2023-10-16T12:49:57.337753Z
Modified
2025-10-13T04:36:39Z
Summary
iperf3 vulnerabilities
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)

References

Affected packages

Ubuntu:Pro:16.04:LTS / iperf3

Package

Name
iperf3
Purl
pkg:deb/ubuntu/iperf3@3.0.11-1ubuntu0.1~esm2?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0.11-1ubuntu0.1~esm2

Affected versions

3.*

3.0.11-1
3.0.11-1ubuntu0.1~esm1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "iperf3",
            "binary_version": "3.0.11-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "libiperf-dev",
            "binary_version": "3.0.11-1ubuntu0.1~esm2"
        },
        {
            "binary_name": "libiperf0",
            "binary_version": "3.0.11-1ubuntu0.1~esm2"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2023-38403",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:Pro:18.04:LTS / iperf3

Package

Name
iperf3
Purl
pkg:deb/ubuntu/iperf3@3.1.3-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.1.3-1ubuntu0.1~esm1

Affected versions

3.*

3.1.3-1

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "iperf3",
            "binary_version": "3.1.3-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libiperf-dev",
            "binary_version": "3.1.3-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libiperf0",
            "binary_version": "3.1.3-1ubuntu0.1~esm1"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:18.04:LTS",
    "cves": [
        {
            "id": "CVE-2023-38403",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}

Ubuntu:Pro:20.04:LTS / iperf3

Package

Name
iperf3
Purl
pkg:deb/ubuntu/iperf3@3.7-3ubuntu0.1~esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.7-3ubuntu0.1~esm1

Affected versions

3.*

3.6-2
3.7-1
3.7-2
3.7-3

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "iperf3",
            "binary_version": "3.7-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "libiperf-dev",
            "binary_version": "3.7-3ubuntu0.1~esm1"
        },
        {
            "binary_name": "libiperf0",
            "binary_version": "3.7-3ubuntu0.1~esm1"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:20.04:LTS",
    "cves": [
        {
            "id": "CVE-2023-38403",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}