UBUNTU-CVE-2021-40491

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/CVE-2021-40491
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-40491.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-40491
Upstream
Downstream
Related
Published
2021-09-03T02:15:00Z
Modified
2025-09-08T16:47:21Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

The ftp client in GNU Inetutils before 2.2 does not validate addresses returned by PASV/LSPV responses to make sure they match the server address. This is similar to CVE-2020-8284 for curl.

References

Affected packages

Ubuntu:Pro:14.04:LTS / inetutils

Package

Name
inetutils
Purl
pkg:deb/ubuntu/inetutils@2:1.9.2-1ubuntu0.1~esm1?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.9.2-1ubuntu0.1~esm1

Affected versions

2:1.*

2:1.9.1.306-0a482-1
2:1.9.1.363-bbc1-1
2:1.9.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2:1.9.2-1ubuntu0.1~esm1",
            "binary_name": "inetutils-ftp"
        },
        {
            "binary_version": "2:1.9.2-1ubuntu0.1~esm1",
            "binary_name": "inetutils-ftpd"
        },
        {
            "binary_version": "2:1.9.2-1ubuntu0.1~esm1",
            "binary_name": "inetutils-inetd"
        },
        {
            "binary_version": "2:1.9.2-1ubuntu0.1~esm1",
            "binary_name": "inetutils-ping"
        },
        {
            "binary_version": "2:1.9.2-1ubuntu0.1~esm1",
            "binary_name": "inetutils-syslogd"
        },
        {
            "binary_version": "2:1.9.2-1ubuntu0.1~esm1",
            "binary_name": "inetutils-talk"
        },
        {
            "binary_version": "2:1.9.2-1ubuntu0.1~esm1",
            "binary_name": "inetutils-talkd"
        },
        {
            "binary_version": "2:1.9.2-1ubuntu0.1~esm1",
            "binary_name": "inetutils-telnet"
        },
        {
            "binary_version": "2:1.9.2-1ubuntu0.1~esm1",
            "binary_name": "inetutils-telnetd"
        },
        {
            "binary_version": "2:1.9.2-1ubuntu0.1~esm1",
            "binary_name": "inetutils-tools"
        },
        {
            "binary_version": "2:1.9.2-1ubuntu0.1~esm1",
            "binary_name": "inetutils-traceroute"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Ubuntu:Pro:16.04:LTS / inetutils

Package

Name
inetutils
Purl
pkg:deb/ubuntu/inetutils@2:1.9.4-1ubuntu0.1~esm2?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.9.4-1ubuntu0.1~esm2

Affected versions

2:1.*

2:1.9.4-1
2:1.9.4-1build1
2:1.9.4-1ubuntu0.1~esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2:1.9.4-1ubuntu0.1~esm2",
            "binary_name": "inetutils-ftp"
        },
        {
            "binary_version": "2:1.9.4-1ubuntu0.1~esm2",
            "binary_name": "inetutils-ftpd"
        },
        {
            "binary_version": "2:1.9.4-1ubuntu0.1~esm2",
            "binary_name": "inetutils-inetd"
        },
        {
            "binary_version": "2:1.9.4-1ubuntu0.1~esm2",
            "binary_name": "inetutils-ping"
        },
        {
            "binary_version": "2:1.9.4-1ubuntu0.1~esm2",
            "binary_name": "inetutils-syslogd"
        },
        {
            "binary_version": "2:1.9.4-1ubuntu0.1~esm2",
            "binary_name": "inetutils-talk"
        },
        {
            "binary_version": "2:1.9.4-1ubuntu0.1~esm2",
            "binary_name": "inetutils-talkd"
        },
        {
            "binary_version": "2:1.9.4-1ubuntu0.1~esm2",
            "binary_name": "inetutils-telnet"
        },
        {
            "binary_version": "2:1.9.4-1ubuntu0.1~esm2",
            "binary_name": "inetutils-telnetd"
        },
        {
            "binary_version": "2:1.9.4-1ubuntu0.1~esm2",
            "binary_name": "inetutils-tools"
        },
        {
            "binary_version": "2:1.9.4-1ubuntu0.1~esm2",
            "binary_name": "inetutils-traceroute"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Ubuntu:Pro:18.04:LTS / inetutils

Package

Name
inetutils
Purl
pkg:deb/ubuntu/inetutils@2:1.9.4-3ubuntu0.1+esm1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.9.4-3ubuntu0.1+esm1

Affected versions

2:1.*

2:1.9.4-2build1
2:1.9.4-3
2:1.9.4-3ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2:1.9.4-3ubuntu0.1+esm1",
            "binary_name": "inetutils-ftp"
        },
        {
            "binary_version": "2:1.9.4-3ubuntu0.1+esm1",
            "binary_name": "inetutils-ftpd"
        },
        {
            "binary_version": "2:1.9.4-3ubuntu0.1+esm1",
            "binary_name": "inetutils-inetd"
        },
        {
            "binary_version": "2:1.9.4-3ubuntu0.1+esm1",
            "binary_name": "inetutils-ping"
        },
        {
            "binary_version": "2:1.9.4-3ubuntu0.1+esm1",
            "binary_name": "inetutils-syslogd"
        },
        {
            "binary_version": "2:1.9.4-3ubuntu0.1+esm1",
            "binary_name": "inetutils-talk"
        },
        {
            "binary_version": "2:1.9.4-3ubuntu0.1+esm1",
            "binary_name": "inetutils-talkd"
        },
        {
            "binary_version": "2:1.9.4-3ubuntu0.1+esm1",
            "binary_name": "inetutils-telnet"
        },
        {
            "binary_version": "2:1.9.4-3ubuntu0.1+esm1",
            "binary_name": "inetutils-telnetd"
        },
        {
            "binary_version": "2:1.9.4-3ubuntu0.1+esm1",
            "binary_name": "inetutils-tools"
        },
        {
            "binary_version": "2:1.9.4-3ubuntu0.1+esm1",
            "binary_name": "inetutils-traceroute"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Ubuntu:Pro:20.04:LTS / inetutils

Package

Name
inetutils
Purl
pkg:deb/ubuntu/inetutils@2:1.9.4-11ubuntu0.2+esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2:1.9.4-11ubuntu0.2+esm1

Affected versions

2:1.*

2:1.9.4-10build1
2:1.9.4-11
2:1.9.4-11ubuntu0.1
2:1.9.4-11ubuntu0.1+esm1
2:1.9.4-11ubuntu0.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2:1.9.4-11ubuntu0.2+esm1",
            "binary_name": "inetutils-ftp"
        },
        {
            "binary_version": "2:1.9.4-11ubuntu0.2+esm1",
            "binary_name": "inetutils-ftpd"
        },
        {
            "binary_version": "2:1.9.4-11ubuntu0.2+esm1",
            "binary_name": "inetutils-inetd"
        },
        {
            "binary_version": "2:1.9.4-11ubuntu0.2+esm1",
            "binary_name": "inetutils-ping"
        },
        {
            "binary_version": "2:1.9.4-11ubuntu0.2+esm1",
            "binary_name": "inetutils-syslogd"
        },
        {
            "binary_version": "2:1.9.4-11ubuntu0.2+esm1",
            "binary_name": "inetutils-talk"
        },
        {
            "binary_version": "2:1.9.4-11ubuntu0.2+esm1",
            "binary_name": "inetutils-talkd"
        },
        {
            "binary_version": "2:1.9.4-11ubuntu0.2+esm1",
            "binary_name": "inetutils-telnet"
        },
        {
            "binary_version": "2:1.9.4-11ubuntu0.2+esm1",
            "binary_name": "inetutils-telnetd"
        },
        {
            "binary_version": "2:1.9.4-11ubuntu0.2+esm1",
            "binary_name": "inetutils-tools"
        },
        {
            "binary_version": "2:1.9.4-11ubuntu0.2+esm1",
            "binary_name": "inetutils-traceroute"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}