USN-6037-1

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-6037-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-6037-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-6037-1
Upstream
Related
Published
2023-04-28T10:19:40.612799Z
Modified
2025-10-13T04:36:24Z
Summary
Apache Commons Net vulnerability
Details

ZeddYu Lu discovered that the FTP client from Apache Commons Net trusted the host from PASV responses by default. A remote attacker with a malicious FTP server could redirect the client to another server, which could possibly result in leaked information about services running on the private network of the client.

References

Affected packages

Ubuntu:Pro:16.04:LTS / libcommons-net-java

Package

Name
libcommons-net-java
Purl
pkg:deb/ubuntu/libcommons-net-java@3.4-2ubuntu2+esm1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.4-2ubuntu2+esm1

Affected versions

3.*

3.3-2
3.4-1
3.4-2
3.4-2ubuntu2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.4-2ubuntu2+esm1",
            "binary_name": "libcommons-net-java"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:16.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2021-37533"
        }
    ]
}

Ubuntu:18.04:LTS / libcommons-net-java

Package

Name
libcommons-net-java
Purl
pkg:deb/ubuntu/libcommons-net-java@3.6-1+deb11u1build0.18.04.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.6-1+deb11u1build0.18.04.1

Affected versions

3.*

3.6-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.6-1+deb11u1build0.18.04.1",
            "binary_name": "libcommons-net-java"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2021-37533"
        }
    ]
}

Ubuntu:20.04:LTS / libcommons-net-java

Package

Name
libcommons-net-java
Purl
pkg:deb/ubuntu/libcommons-net-java@3.6-1+deb11u1build0.20.04.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.6-1+deb11u1build0.20.04.1

Affected versions

3.*

3.6-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.6-1+deb11u1build0.20.04.1",
            "binary_name": "libcommons-net-java"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2021-37533"
        }
    ]
}

Ubuntu:22.04:LTS / libcommons-net-java

Package

Name
libcommons-net-java
Purl
pkg:deb/ubuntu/libcommons-net-java@3.6-1+deb11u1build0.22.04.1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.6-1+deb11u1build0.22.04.1

Affected versions

3.*

3.6-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.6-1+deb11u1build0.22.04.1",
            "binary_name": "libcommons-net-java"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:22.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2021-37533"
        }
    ]
}